Gaya APA

Swanson, C, P., Martin, M, C. (1970). Exercising spoken english . London: London: The Macmillan Press; 1970.

Gaya MLA

Swanson, Carl, P.., Martin, M.H., Combe. "Exercising spoken english". London: London: The Macmillan Press; 1970, 1970. Text.