एपीए उद्धरण

Ravindran Nair, R. (1971). Mechanical engineering. State Institute of Languages.

शिकागो स्टाइल उद्धरण

Ravindran Nair, R. Mechanical Engineering. Trivandrum: State Institute of Languages, 1971.

एमएलए उद्धरण

Ravindran Nair, R. Mechanical Engineering. State Institute of Languages, 1971.