Cita APA (7a ed.)

TURTON NIGEL D. (2008). ABC OF COMMON GRAMMATICAL ERRORS.

Cita Chicago Style (17a ed.)

TURTON NIGEL D. ABC OF COMMON GRAMMATICAL ERRORS. CHENNAI, 2008.

Cita MLA (9a ed.)

TURTON NIGEL D. ABC OF COMMON GRAMMATICAL ERRORS. 2008.