Common tree diseases of British Columbia /
by R. E. Foster and G. W. Wallis.
APA Citation
Foster, R. E., Wallis, G. W. (Gordon William)., Canada. Dept. of Fisheries and Forestry. (1969). Common tree diseases of British Columbia. Ottawa: Dept. of Fisheries and Forestry, Canada.
MLA Citation
Foster, R. E, G. W. (Gordon William) Wallis, and Canada. Dept. of Fisheries and Forestry. Common Tree Diseases of British Columbia. Ottawa: Dept. of Fisheries and Forestry, Canada, 1969.
Warning: These citations may not always be complete (especially for serials).