Cita APA

Darwin Charles. (1952). The origin of species by means of natural selection. Enciclopaedia Britannica.

Citación estilo Chicago

Darwin Charles. The Origin of Species by Means of Natural Selection. Chicago: Enciclopaedia Britannica, 1952.

Cita MLA

Darwin Charles. The Origin of Species by Means of Natural Selection. Enciclopaedia Britannica, 1952.

Warning: These citations may not always be 100% accurate.