APA (7th ed.) Citation

Markowitz, H. (1982). Behavioral enrichment in the zoo. Van Nostrand Reinhold.

Chicago Style (17th ed.) Citation

Markowitz, Hal. Behavioral Enrichment in the Zoo. New York u.a: Van Nostrand Reinhold, 1982.

MLA (9th ed.) Citation

Markowitz, Hal. Behavioral Enrichment in the Zoo. Van Nostrand Reinhold, 1982.