Important forest insects and diseases of mutual concern to Canada, the United States and Mexico,

Important forest insects and diseases of mutual concern to Canada, the United States and Mexico,

Wedi'i Gadw mewn:
Manylion Llyfryddiaeth
Awdur Corfforaethol: Food and Agriculture Organization of the United Nations. Working Group on Forest Insects and Diseases
Awduron Eraill: Davidson, A. G., 1927- (ed.), Prentice, R. M. (ed.)
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: [Ottawa, Queen's Printer, 1967]
Cyfres:Canada. Dept. of Forestry and Rural Development. Publication no. 1180.
Pynciau:
Forest insects > North America.
Trees > Diseases and pests > North America.
Pests > Control > North America.
Disgrifiad
Disgrifiad Corfforoll:248 p. illus., maps. 25 cm.
Llyfryddiaeth:Includes bibliographies.

Eitemau Tebyg