APA (7th ed.) Zitazioa

Levy , C. K. (1978). Elements of biology (2nd ed.). Addison-Wesley.

Chicago Style (17th ed.) Zitazioa

Levy , Charles K. Elements of Biology. 2nd ed. Reading, Mass: Addison-Wesley, 1978.

MLA (9th ed.) Zitazioa

Levy , Charles K. Elements of Biology. 2nd ed. Addison-Wesley, 1978.