Cita APA (7a ed.)

Close, R. (1975). A reference grammar for students of english (9. ed.). Longman.

Cita Chicago Style (17a ed.)

Close, R.A. A Reference Grammar for Students of English. 9. ed. London: Longman, 1975.

Cita MLA (8a ed.)

Close, R.A. A Reference Grammar for Students of English. 9. ed. Longman, 1975.