APA-referens

Barker, A. L. K. (1986). Work out chemistry for first examinations.

Chicago-stil citat

Barker, A L; Knapp. Work Out Chemistry for First Examinations. Macmillan & Co. Ltd., London, 1986.

MLA-referens

Barker, A L; Knapp. Work Out Chemistry for First Examinations. 1986.