Insect pests of evergreens /
Mark E. Ascerno, Robert P. Wawrzynski.

APA Citation

Ascerno, M. E., Wawrzynski, R. P. (1988). Insect pests of evergreens. Rev. [St. Paul, Minn.]: Minnesota Agricultural Extension Service, University of Minnesota.

MLA Citation

Ascerno, Mark E, and Robert P Wawrzynski. Insect Pests of Evergreens. Rev. [St. Paul, Minn.]: Minnesota Agricultural Extension Service, University of Minnesota, 1988.