APA (7th ed.) Citation

Smart, P. (1981). The illustrated encyclopedia of the butterfly world. Transworld Publ.

Chicago Style (17th ed.) Citation

Smart, Paul. The Illustrated Encyclopedia of the Butterfly World. London: Transworld Publ, 1981.

MLA (9th ed.) Citation

Smart, Paul. The Illustrated Encyclopedia of the Butterfly World. Transworld Publ, 1981.

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