Cita APA (7a ed.)

Close, R. (1985). A reference grammar for students of English. Longman.

Cita Chicago Style (17a ed.)

Close, R.A. A Reference Grammar for Students of English. Harlow: Longman, 1985.

Cita MLA (9a ed.)

Close, R.A. A Reference Grammar for Students of English. Longman, 1985.