APA (7th ed.) Citation

Pringle, L., & Morrill, L. H. (1977). Animals and their niches: How species share resources. Morrow.

Chicago Style (17th ed.) Citation

Pringle, Laurence, and Leslie H. Morrill. Animals and Their Niches: How Species Share Resources. New York: Morrow, 1977.

MLA (8th ed.) Citation

Pringle, Laurence, and Leslie H. Morrill. Animals and Their Niches: How Species Share Resources. Morrow, 1977.