Cita APA (7a ed.)
Darwin, C. (2017). The expression of the emotions in man and animals. Createspace.
Cita Chicago Style (17a ed.)
Darwin, Charles. The Expression of the Emotions in Man and Animals. USA: Createspace, 2017.
Cita MLA (9a ed.)
Darwin, Charles. The Expression of the Emotions in Man and Animals. Createspace, 2017.
Precaución: Estas citas no son 100% exactas.