Vollständige synonymik der bis zum ende des jahres 1870 publicirten botanischen gattungen, untergattungen und abtheilungen : zugleich systematische Uebersicht des ganzen Gewächsreiches mit den neueren Bereicherungen und Berichtigungen nach Endlicher's Schema - Pfeiffer, Louis (Ludwig Georg Karl), 1805 -1877 (C.B. Griesbach's Verlag, 1887)

Wall and water gardens - Jekyll, Gertrude, 1843 -1932 (C. Scribner's Sons, 1901)

Wall and water gardens - Jekyll, Gertrude, 1843 -1932 ("Country life", 1902)

Wall and water gardens - Jekyll, Gertrude, 1843 -1932 ("Country life", 1906)

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Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 1987)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 1990)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 1994)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 1998)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 2000)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 2002)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 2010)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 2011)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 2014)

Washington Park Arboretum bulletin - University of Washington. (Published by the Arboretum Foundation for the University of Washington, 2016)

Webbia - Webb, Philip Barker, 1793 -1854 (Istituto botanico dell'Università di Firenze, 1905)

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Wholesale price list : 1951 seeds of So. California - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (E.W. Cisler, 1951)

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Wholesale price list 3420 : season 1934-1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.B. Clarke & Co, 1934)

Wholesale price list 3536 : season 1935-1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (W.B. Clarke & Co, 1935)

Wholesale price list to the trade, 1929-1930 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Leonard Coates Nurseries, 1929)

Wholesale price list to the trade, 1931-1932 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Leonard Coates Nurseries, Incorporated, 1931)

Wholesale price list to the trade, 1935-1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Leonard Coates Nurseries, Incorporated, 1935)

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Winter botany - Trelease, William, 1857 -1945 (The author, 1918)

Winter botany, a companion volume to the author's Plant materials of decorative gardening - Trelease, William, 1857 -1945 (Trelease, 1918)

Winter botany, a companion volume to the author's Plant materials of decorative gardening - Trelease, William, 1857 -1945 (The author, 1918)

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zhong guo zhong zi zhi wu fen lei xue - zheng mian (shang hai ke xue ji shu chu ban she, 1959)

zhong zi zhi wu fen lei xue jiang yi - Hu. Xianxiao (zhong hua shu ju chu ban, 1954)

Zoe:a biological journal (Zoe Publishing Co, 1890)

Zoe:a biological journal (Zoe Publishing Co, 1891)

Zoe:a biological journal (Zoe Publishing Co, 1892)

Zoe:a biological journal (Zoe Publishing Co, 1893)

Zoe:a biological journal (Zoe Publishing Co, 1894)

Zoe:a biological journal (Zoe Publishing Co, 1900)

Zoe:a biological journal (Zoe Publishing Co, 1903)

Zoogeography - Hubbs, Carl L. (Carl Leavitt), 1894 -1979 (1958)

Zur Flora von Domingo-Haiti - Palacký, Jan, 1830 -1908 (1896)