Cita APA (7a ed.)

Quirk, R. (1972). A GRAMMAR of Contemporary English. Longman.

Cita Chicago Style (17a ed.)

Quirk, Randolph. A GRAMMAR of Contemporary English. London: Longman, 1972.

Cita MLA (8a ed.)

Quirk, Randolph. A GRAMMAR of Contemporary English. Longman, 1972.