APA aipamena

Graff, H. (1976). Irumpurukku Vyavasayam. State Institute of languages.

Chicago Style aipamena

Graff, Heinz. Irumpurukku Vyavasayam. Trivandrum: State Institute of languages, 1976.

MLA aipamena

Graff, Heinz. Irumpurukku Vyavasayam. State Institute of languages, 1976.