Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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