APA (7th ed.) Citation

SpringerLink (Online service) & Karaca, A. (2011). Biology of earthworms. Springer eBook..

Chicago Style (17th ed.) Citation

SpringerLink (Online service) and Ayte Karaca. "Biology of Earthworms." Springer EBook. 2011.

MLA (9th ed.) Citation

SpringerLink (Online service) and Ayte Karaca. "Biology of Earthworms." Springer EBook., 2011.

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