African violet magazine - African Violet Society of America. (African Violet Society of America, 2001)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2002)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2003)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2004)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2005)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2006)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2009)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2010)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2013)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2014)

African violet magazine - African Violet Society of America. (African Violet Society of America, 2015)

Agricultural index - H.W. Wilson Company. (H. W. Wilson Co, 1916)

Albert Schenkel, Samen : 1935 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Albert Schenkel, 1935)

Albert Schenkel, Samen : 1936 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Albert Schenkel, 1936)

Album der Natuur - Vries, Hugo de, 1848 -1935 (1901)

Alexander's catalog : bulbs, seeds, plants : 1931 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (J. Herbert Alexander, 1931)

All America rose selections winner : mission bells - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Germain, 1951)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1842)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1843)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1844)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1845)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1846)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1847)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1848)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1849)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1850)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1851)

Allgemeine Gartenzeitung - Otto, Friedrich, 1783 -1856 (1852)