APA (7e ed.) Bronvermelding

Birch, B. (1991). Alexander Fleming. Replicação.

Chicago (17e ed.) Bronvermelding

Birch, Beverley. Alexander Fleming. Replicação, 1991.

MLA (8e ed.) Bronvermelding

Birch, Beverley. Alexander Fleming. Replicação, 1991.

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