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Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1961)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1978)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1984)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 2010)

Wayside Gardens root strength, 1940 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1940)

Wayside Gardens root strength, 1943 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wayside Gardens, 1943)

The weekly florists' review (Florists' Pub. Co, 1898)

The weekly florists' review (Florists' Pub. Co, 1899)

The weekly florists' review (Florists' Pub. Co, 1900)

The weekly florists' review (Florists' Pub. Co, 1901)

The weekly florists' review (Florists' Pub. Co, 1902)

The weekly florists' review (Florists' Pub. Co, 1903)

wei guan shu zhi wu jian ding shou ce 维管束植物鉴定手册 - Lin, Ying 林英 (jiang xi xin hua yin shua chang yin shua 江西新华印刷厂印 刷, 1979)

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Weobecný rostlinopis ili Popsani rostlin we welikém ohledu uitenych a kodliwých - Presl, Jan Svatopluk, 1791 -1849 (W kommissi u Kronbergra a Riwnáe, 1846)

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Westafrikanische Kautschuk-Expedition - Schlechter, Rudolf, 1872 -1925 (Verlag des Kolonial-Wirtschaftlichen Komitees, 1899)

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