APA (7th ed.) Citation

Smart. (1976). The illustrated encyclopedia of the butterfly world. Hamlyn.

Chicago Style (17th ed.) Citation

Smart. The Illustrated Encyclopedia of the Butterfly World. London New York: Hamlyn, 1976.

MLA (8th ed.) Citation

Smart. The Illustrated Encyclopedia of the Butterfly World. Hamlyn, 1976.

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