Παραπομπή APA

Collins,Tim. (2009). Correct your english errors. Tata McGraw-Hill.

Παραπομπή Chicago Style

Collins,Tim. Correct Your English Errors. New Delhi: Tata McGraw-Hill, 2009.

Παραπομπή MLA

Collins,Tim. Correct Your English Errors. Tata McGraw-Hill, 2009.