Wood and forest - Noyes, William, 1862 -1928 (The Manual arts press, 1921)

Wood and forest - Noyes, William, 1862 -1928 (Manual arts press, 1912)

Wood-using industries of Pennsylvania - Simmons, Roger Edwin. (W. S. Ray, state printer, 1914)

Woodland conservation for teachers in Iowa, Illinois, Indiana, and Ohio - United States. Forest Service. ([s.n.], 1955)

Woody plants of the western national parks; containing keys for the identification of trees and shrubs - Bailey, Harold Edwards, 1906 - (University Press, 1949)

The year without a summer? : world climate in 1816 - Harington, C. R. (Charles Richard), 1933 - (Canadian Museum of Nature, 1992)

Yearbook of agriculture - United States. Department of Agriculture. (U.S. Govt. Print. Off, 1900)

Young's Point Provincial Park and Williamson Provincial Park management plan - Alberta. Alberta Community Development. (Alberta Community Development, Parks and Protected Areas, 2003)

Zeitschrift für Botanik (1913)

Zeitschrift für Pflanzenkrankheiten (E. Ulmer, 1891)

Der Zoologische Garten - International Union of Directors of Zoological Gardens (G. Fischer, Zoologische gesellschaft, 1903)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1899)