Cita APA (7th ed.)

Scobie, J. (1961). English for the certificate. G. Allen & Unwin.

Cita Chicago (17th ed.)

Scobie, J. English for the Certificate. London: G. Allen & Unwin, 1961.

Cita MLA (9th ed.)

Scobie, J. English for the Certificate. G. Allen & Unwin, 1961.