Citazione Stile APA (7a Edizione)

Rutherford, W. E. (1987). Second language grammar: Learning and teaching (1a. ed.). Longman.

Citazione stile Chigago Style (17a edizione)

Rutherford, William E. Second Language Grammar: Learning and Teaching. 1a. ed. Londres: Longman, 1987.

Citatione MLA (9a ed.)

Rutherford, William E. Second Language Grammar: Learning and Teaching. 1a. ed. Longman, 1987.