APA (7th ed.) Citation

Wallwork, J. A. (1983). Earthworm biology. Arnold.

Chicago Style (17th ed.) Citation

Wallwork, John A. Earthworm Biology. London: Arnold, 1983.

MLA (9th ed.) Citation

Wallwork, John A. Earthworm Biology. Arnold, 1983.

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