APA (7th ed.) Citation

Hanson, E. D. (1977). The origin and early evolution of animals. Wesleyan Univ. Press.

Chicago Style (17th ed.) Citation

Hanson, Earl Dorchester. The Origin and Early Evolution of Animals. Middletown, Conn: Wesleyan Univ. Press, 1977.

MLA (9th ed.) Citation

Hanson, Earl Dorchester. The Origin and Early Evolution of Animals. Wesleyan Univ. Press, 1977.

Warning: These citations may not always be 100% accurate.