APA (7e ed.) Bronvermelding

Ron Pickering. (2014). Complete Biology for Cambridge IGCSERG with CD-ROM (Second Edition) (2.). Oxford University Press.

Chicago (17e ed.) Bronvermelding

Ron Pickering. Complete Biology for Cambridge IGCSERG with CD-ROM (Second Edition). 2. Oxford University Press, 2014.

MLA (9e ed.) Bronvermelding

Ron Pickering. Complete Biology for Cambridge IGCSERG with CD-ROM (Second Edition). 2. Oxford University Press, 2014.

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