APA (7th ed.) Citation

Comstock, J. H., & Comstock, A. B. (1915). A manual for the study of insects (13th ed.). Comstock Pub. Co..

Chicago Style (17th ed.) Citation

Comstock, John Henry, and Anna Botsford Comstock. A Manual for the Study of Insects. 13th ed. Ithaca, N. Y.: Comstock Pub. Co., 1915.

MLA (9th ed.) Citation

Comstock, John Henry, and Anna Botsford Comstock. A Manual for the Study of Insects. 13th ed. Comstock Pub. Co., 1915.