Παραπομπή APA

Rutten, M. G. (1971). Origin of life by natural causes. Elsevier publishing.

Παραπομπή Chicago Style

Rutten, M. G. Origin of Life by Natural Causes. New york: Elsevier publishing, 1971.

Παραπομπή MLA

Rutten, M. G. Origin of Life by Natural Causes. Elsevier publishing, 1971.