Παραπομπή APA

Berry, R. [. (1970). Variation in mammalian populations. The Zoological Society of London.

Παραπομπή Chicago Style

Berry, R.J. [ed.]. Variation in Mammalian Populations. London: The Zoological Society of London, 1970.

Παραπομπή MLA

Berry, R.J. [ed.]. Variation in Mammalian Populations. The Zoological Society of London, 1970.