APA (7e ed.) Bronvermelding

Não informado. (1978). Italian journal of gastroenterology. Piccin Medical Books.

Chicago (17e ed.) Bronvermelding

Não informado. Italian Journal of Gastroenterology. Padova, Italia: Piccin Medical Books, 1978.

MLA (8e ed.) Bronvermelding

Não informado. Italian Journal of Gastroenterology. Piccin Medical Books, 1978.

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