Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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