Παραπομπή APA

Negi, K. (2013). Spoken english and effective communication. Pacific Books.

Παραπομπή Chicago Style

Negi, Kamala. Spoken English and Effective Communication. Delhi: Pacific Books, 2013.

Παραπομπή MLA

Negi, Kamala. Spoken English and Effective Communication. Pacific Books, 2013.