Gaya APA

Marckwardt, A, H., Quirk, R. (1964). A common language : British and american english . Inggris: The British Broadcasting Corporation and The Voice of America.

Gaya MLA

Marckwardt, Albert, H.., Quirk, Randolph. "A common language : British and american english". Inggris: The British Broadcasting Corporation and The Voice of America, 1964. Text.