Παραπομπή APA

Turton, N. D. A. (1995). ABC of common grammatical errors.

Παραπομπή Chicago Style

Turton, Nigel D; Author. ABC of Common Grammatical Errors. London, Macmillan, 1995.

Παραπομπή MLA

Turton, Nigel D; Author. ABC of Common Grammatical Errors. 1995.