APA (7th ed.) Citation

Feltwell, J. (2001). The illustrated encyclopedia of butterflies. Orange Books.

Chicago Style (17th ed.) Citation

Feltwell, John. The Illustrated Encyclopedia of Butterflies. Singapore: Orange Books, 2001.

MLA (9th ed.) Citation

Feltwell, John. The Illustrated Encyclopedia of Butterflies. Orange Books, 2001.

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