Παραπομπή APA

Field, M. (2006). Improve your written english (4th.). Jaico.

Παραπομπή Chicago Style

Field, Marion. Improve Your Written English. 4th. Mumbai: Jaico, 2006.

Παραπομπή MLA

Field, Marion. Improve Your Written English. 4th. Jaico, 2006.