Παραπομπή APA

Sridharan, P. (1977). Astapadi. SPCS.

Παραπομπή Chicago Style

Sridharan, Perumpatavam. Astapadi. Kottayam: SPCS, 1977.

Παραπομπή MLA

Sridharan, Perumpatavam. Astapadi. SPCS, 1977.