Your new 1959 price list - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Erickson's Seed Store, 1959)

Your seasonal "garden gossip" - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Kerr-Langen Seed Co, 1951)

yun nan zhi wu zhi - Wu, Zhengyi. (ke xue chu ban she, 2004)

Yunnan zhong zi zhi wu ming lu - Zhongguo ke xue yuan. Kunming zhi wu yan jiu suo. (Yunnan ren min chu ban she, 1984)

Zeitschrift für Botanik (1922)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)

Zeitschrift für Physiologie - Treviranus, Gottfried Reinhold, 1776 -1837 (1829)

zhong guo zhong zi zhi wu ke shu ci dian - Hou, Kuanzhao 侯宽昭 (ke xue chu ban she, 1982)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1901)