Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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