Cita APA

Thomas, A. (1970). A practical English grammer (2nd.). O U P.

Citación estilo Chicago

Thomas, A. A Practical English Grammer. 2nd. London: O U P, 1970.

Cita MLA

Thomas, A. A Practical English Grammer. 2nd. O U P, 1970.

Warning: These citations may not always be 100% accurate.