APA aipamena

Velayudhan P. S. (1968). Romaayugam. Sahitya Pravarthaka Sahakarana Sangam.

Chicago Style aipamena

Velayudhan P. S. Romaayugam. Kottayam: Sahitya Pravarthaka Sahakarana Sangam, 1968.

MLA aipamena

Velayudhan P. S. Romaayugam. Sahitya Pravarthaka Sahakarana Sangam, 1968.