APA (7e ed.) Bronvermelding

Não informado. (1932). Pig Breeders Gazette. National Pig Breeders Association.

Chicago (17e ed.) Bronvermelding

Não informado. Pig Breeders Gazette. London: National Pig Breeders Association, 1932.

MLA (8e ed.) Bronvermelding

Não informado. Pig Breeders Gazette. National Pig Breeders Association, 1932.

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