Παραπομπή APA

Parameswarayyar, U. S. Kerala sahithya charithram: Vol.1. Kerala University.

Παραπομπή Chicago Style

Parameswarayyar, Ulloor S. Kerala Sahithya Charithram: Vol.1. Thiruvananthapuram: Kerala University.

Παραπομπή MLA

Parameswarayyar, Ulloor S. Kerala Sahithya Charithram: Vol.1. Kerala University.