APA (7th ed.) Citation

Harlow, E., & Parsons, I. (1974). The Encyclopedia of wild life. Spring Books.

Chicago Style (17th ed.) Citation

Harlow, Eve, and Iain Parsons. The Encyclopedia of Wild Life. London: Spring Books, 1974.

MLA (9th ed.) Citation

Harlow, Eve, and Iain Parsons. The Encyclopedia of Wild Life. Spring Books, 1974.