Wood, a manual of the natural history and industrial applications of the timbers of commerce - Boulger, George Simonds, 1853 -1922 (E. Arnold, 1902)

Woody plants in winter; a manual of common trees and shrubs in winter in the Northeastern United States and southeastern Canada - Ammons, Nelle P. 1889 - (Boxwood Press, 1958)

The World List of Threatened Trees (1998)

Wörterbuch der biologie. Von dr. Heinrich Schmidt - Schmidt, Heinrich, 1874 -1935 (A. Kröner, 1912)

Wyoming Avenue Nurseries : fruit, nut, shade and ornamental trees, and shrubbery - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Wyoming Avenue Nurseries, 1897)

xi an zhi wu zhi - Xie, Yintang, Wang Mali & Zhao Guifang (shan xi ke xue ji shu chu ban she, 2007)

Year book of the Pennsylvania Horticultural Society - Pennsylvania Horticultural Society. (Pennsylvania Horticulutural Society, 1936)

A year in a Lancashire garden - Bright, Henry Arthur, 1830 -1884 (Macmillan, 1891)

Yearbook of the United States Department of Agriculture - United States. Department of Agriculture. (Govt. Print. Off, 1908)

you hua zhi wu ke zhi shuang zi ye zhi wu - Hutchinson, J. (John) 1884 -1972 (shang wu yin shu guan)

yun nan zhi wu zhi - yun nan sheng zhi wu yan jiu suo (ke xue chu ban she, 1979)

zai pei zhi wu ming lu - Zhongguo ke xue yuan. Zhi wu yan jiu suo (zhong guo ke xue yuan)

Zeitschrift des Mährischen Landesmuseums - Hucke, Karl. (Die Gesellschaft, 1907)

Zeitschrift für Naturwissenschaften - Naturwissenschaftlicher Verein für Sachsen und Thüringen in Halle. (Verlag Naturwissenschaftlichen Vereins für Sachsen und Thüringen, 1884)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)

Zeitschrift für wissenschaftliche Mikroskopie und mikroskopische Technik (S. Hirzel [etc.], 1890)

zhi wu fen lei xue jian bian - Hu, Xiansu (gao deng jiao yu chu ban she)

zhong guo jing ji zhi wu bing yuan mu lu - Dai, Fanglan, Xiang Wangnian & Zheng Ruyong (ke xue chu ban she, 1958)

zhong guo sen lin zhi wu zhi - Qian, Chongshu. 钱崇澍 (zhong guo ke xue tu shu yi qi gong si)

zhong guo sen lin zhi wu zhi 中国森林植物志 - Qian, Chongshu. 钱崇澍 (zhong guo ke xue tu shu yi qi gong si中国科学图书仪器公司, 1950)

zhong guo seng lin di li zi ran fen qu zong lun.1956nian ying lin bu fen,lin ye bu lin ye ke xue yan jiu suo yan jiu bao gao 中国森林地理自然分区总论.1956年营林部分,林业部林业科学研究所研究报告 - sen lin di li yan jiu shi, wu zhong lun 森林地理研究室主编, 吴中伦主编 (lin ye bu lin ye ke xue yan jiu suo 林业部林业科学研究所, 1958)

zhong guo zao zhi zhi wu yuan liao zhi - Sun, Baoming & Li Zhongkai (qing gong ye chu ban she, 1959)

zhong guo zhi wu ke shu jian suo biao - Zhongguo zhi wu yan jiu suo bian (zhong guo ke xue yuan zhi wu yan jiu suo, 1953)

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

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

zhong zi zhi wu ming cheng - Zhongguo ke xue yuan bian yi ju (zhong guo ke xue yuan, 1954)

zhu xi zhi wu zhi - Gan, Qiliang (hu bei chang jiang chu ban ji tuan hu bei ke xue ji shu chu ban she, 2005)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1888)