Essing, E. O. (1958). Insects and mites of western North América: A manual and textbook for students in colleges and universities and a handbook for country, state and federal entomologist and agriculturist as well as for foresters, farmers, travelers and students of nature. Macmillan.
Cita Chicago Style (17a ed.)Essing, E. O. Insects and Mites of Western North América: A Manual and Textbook for Students in Colleges and Universities and a Handbook for Country, State and Federal Entomologist and Agriculturist as Well as for Foresters, Farmers, Travelers and Students of Nature. New York: Macmillan, 1958.
Cita MLA (8a ed.)Essing, E. O. Insects and Mites of Western North América: A Manual and Textbook for Students in Colleges and Universities and a Handbook for Country, State and Federal Entomologist and Agriculturist as Well as for Foresters, Farmers, Travelers and Students of Nature. Macmillan, 1958.