APA (7e ed.) Bronvermelding

Darwin, C. (2013). The expression of the emotions in man and animals. Cambridge University.

Chicago (17e ed.) Bronvermelding

Darwin, Charles. The Expression of the Emotions in Man and Animals. London: Cambridge University, 2013.

MLA (9e ed.) Bronvermelding

Darwin, Charles. The Expression of the Emotions in Man and Animals. Cambridge University, 2013.

Let op: Deze citaties zijn niet altijd 100% accuraat.