Managing cavity trees for wildlife in the Northeast /
Richard M. DeGraaf, Alex L. Shigo.

APA Citation

DeGraaf, R. M., Shigo, A. L., Northeastern Forest Experiment Station (Radnor, P. (1985). Managing cavity trees for wildlife in the Northeast. [Broomall, PA]: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station.

MLA Citation

DeGraaf, Richard M, Alex L. Shigo, and Pa.) Northeastern Forest Experiment Station (Radnor. Managing Cavity Trees for Wildlife In the Northeast. [Broomall, PA]: U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1985.

Warning: These citations may not always be complete (especially for serials).