APA (7th ed.) Citation

Armstrong, A. (1990). Binoculars for birders: A field guide to binoculars. Avian Press.

Chicago Style (17th ed.) Citation

Armstrong, Alan. Binoculars for Birders: A Field Guide to Binoculars. Madison, Wis.: Avian Press, 1990.

MLA (9th ed.) Citation

Armstrong, Alan. Binoculars for Birders: A Field Guide to Binoculars. Avian Press, 1990.