Παραπομπή APA

Gopalakrishnan, N. A. (2001). Bhashaavicharam.

Παραπομπή Chicago Style

Gopalakrishnan, Naduvattam; Author. Bhashaavicharam. Kozhikkode, Lipi Publications, 2001.

Παραπομπή MLA

Gopalakrishnan, Naduvattam; Author. Bhashaavicharam. 2001.