APA (7th ed.) Citation

Armitage, B. J. (1991). Diagnostic Atlas of the North American caddisfly adults. I. Philopotamidae (2a ed.). The Caddis Press.

Chicago Style (17th ed.) Citation

Armitage, Brian J. Diagnostic Atlas of the North American Caddisfly Adults. I. Philopotamidae. 2a ed. Athens, Alabama (Columbus, Ohio): The Caddis Press, 1991.

MLA (9th ed.) Citation

Armitage, Brian J. Diagnostic Atlas of the North American Caddisfly Adults. I. Philopotamidae. 2a ed. The Caddis Press, 1991.