Water plants ; a study of aquatic angiosperms - Arber, Agnes Robertson, 1879 -1960 (University Press, 1920)

Waterfowl of Illinois : status and management - Illinois. Natural History Survey Division (Illinois Natural History Survey, 1999)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1970)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1986)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1988)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1998)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 1999)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 2000)

Watsonia - Botanical Society of the British Isles. (Botanical Society of the British Isles, 2002)

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

Weeds of Bhutan - Bhutan. Department of Agriculture. (National Plant Protection Centre, 1992)

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)

Weltatlas der Korallen Riffe - Ravilious, Corinna (UNEP-WCMC, 2004)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1961)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1962)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1989)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1990)

The Western Australian Naturalist - Western Australian Naturalists' Club (Western Australian Naturalists' Club, 1992)

Western naturalist - Renfrew Natural History Society. (Renfrew Natural History Society, 1974)

Whirrakee : a monthly newsletter - Bendigo Field Naturalists Club (Bendigo Field Naturalists Club, 1984)

Whitehorse Wildland Park management plan - Alberta. Alberta Environment. Natural Resources Service. (Alberta Environment, Natural Resources Service, 2000)

Wiltshire archaeological and natural history magazine - Wiltshire Archaeological; Natural History Society. (Wiltshire Archaeological and Natural History Society, 1999)

Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898-1899 - Chun, Carl, 1852 -1914 (G. Fischer, 1922)

Wissenschaftliche Ergebnisse der Deutschen Zentral-Africa-Expedition, 1907-1908 : unter Führung Adolf Friedrichs, Herzogs zu Mecklenburg - Friedrich, Adolf Duke of Mecklenburg-Schwerin, 1873 -1969 (Klinkhardt & Biermann, 1914)

Wissenschaftliche Meersuntersuchungen. Abt. Helgoland - Biologische Anstalt Helgoland. (Lipsius und Tischer, 1902)

Wissenschaftliche Mitteilungen aus Bosnien und Herzegovina (1904)

World Atlas of Biodiversity: earth's living resources in the 21st century - Groombridge, Brian (UNEP-WCMC, 2002)

World directory of hydrobiological and fisheries institutions - Hiatt, Robert W. (American Institute of Biological Sciences, 1963)

Wrightia - University of Texas at Dallas. (University of Texas at Dallas, 1971)

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

xin jiang sheng wu duo yang xing - Yuan, Guoying (xin jiang ke xue ji shu chu ban she, 2008)

yao yong zhi wu xue 药用植物学 - quan guo zhong deng wei sheng xue xiao shi yong jiao cai yao yong zhi wu xue bian xie zu 全国中等卫生学校 试用教材药用植物学 编写组 (si chuan ren min chu ban she 四川人民出版社, 1979)