Cita APA (7a ed.)

WARD, J. M. (1972). Practice in structure and usage for Intermediate students. Longman.

Cita Chicago Style (17a ed.)

WARD, J. Millington. Practice in Structure and Usage for Intermediate Students. London: Longman, 1972.

Cita MLA (9a ed.)

WARD, J. Millington. Practice in Structure and Usage for Intermediate Students. Longman, 1972.