APA (7th ed.) Zitazioa

RUTTEN, M. G. (1971). The Origin of life by natural causes. Elsevier.

Chicago Style (17th ed.) Zitazioa

RUTTEN, Martin G. The Origin of Life by Natural Causes. Amsterdam: Elsevier, 1971.

MLA (9th ed.) Zitazioa

RUTTEN, Martin G. The Origin of Life by Natural Causes. Elsevier, 1971.