Παραπομπή APA

Balagopal T S & Vijayan C.V. (1973). Kettita varappu. State instuitute of laguages.

Παραπομπή Chicago Style

Balagopal T S και Vijayan C.V. Kettita Varappu. Trivandrum: State instuitute of laguages, 1973.

Παραπομπή MLA

Balagopal T S και Vijayan C.V. Kettita Varappu. State instuitute of laguages, 1973.