APA (7th ed.) Citation

Porter, E., & Harwood, M. (1977). Moments of discovery: Adventures with American birds. Dutton.

Chicago Style (17th ed.) Citation

Porter, Eliot, and Michael Harwood. Moments of Discovery: Adventures with American Birds. New York: Dutton, 1977.

MLA (9th ed.) Citation

Porter, Eliot, and Michael Harwood. Moments of Discovery: Adventures with American Birds. Dutton, 1977.