APA (7th ed.) Citation

Higgins, L. G., & Hargreaves, B. (1983). The butterflies of Britain and Europe. Collins.

Chicago Style (17th ed.) Citation

Higgins, Lionel George, and Brian Hargreaves. The Butterflies of Britain and Europe. London: Collins, 1983.

MLA (9th ed.) Citation

Higgins, Lionel George, and Brian Hargreaves. The Butterflies of Britain and Europe. Collins, 1983.

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