APA (7e ed.) Bronvermelding

the Elder, P., & Healy, J. F. (1991). Natural history: Selection. Penguin Books.

Chicago (17e ed.) Bronvermelding

the Elder, Pliny, en John F. Healy. Natural History: Selection. London: Penguin Books, 1991.

MLA (9e ed.) Bronvermelding

the Elder, Pliny, en John F. Healy. Natural History: Selection. Penguin Books, 1991.