Gaya APA

Silcocks, C., , . (1972). Physical chemistry for advanced level G.C.E. and ordinary national ì certificate . London: London: Macdonald and Evans; 1972.

Gaya MLA

Silcocks, C.G.., , . "Physical chemistry for advanced level G.C.E. and ordinary national ì certificate". London: London: Macdonald and Evans; 1972, 1972. Text.