APA (7e ed.) Bronvermelding

Não informado. (1979). In Practice. British Veterinary Association.

Chicago (17e ed.) Bronvermelding

Não informado. In Practice. London: British Veterinary Association, 1979.

MLA (8e ed.) Bronvermelding

Não informado. In Practice. British Veterinary Association, 1979.

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