Insects of western North America;
a manual and textbook for students in colleges and universities and a handbook for county, state and federal entomologists and agriculturists as well as for foresters, farmers, gardeners, travelers, and lovers of nature,
APA Citation
Essig, E. O. (Edward Oliver). (1926). Insects of western North America: a manual and textbook for students in colleges and universities and a handbook for county, state and federal entomologists and agriculturists as well as for foresters, farmers, gardeners, travelers, and lovers of nature. New York: The Macmillan company.
MLA Citation
Essig, E. O. (Edward Oliver), 1884-1964. Insects of Western North America: a Manual And Textbook for Students In Colleges And Universities And a Handbook for County, State And Federal Entomologists And Agriculturists As Well As for Foresters, Farmers, Gardeners, Travelers, And Lovers of Nature. New York: The Macmillan company, 1926.
Warning: These citations may not always be complete (especially for serials).