APA

Mathachan M. e. a., . (1989). Textbook of physics. : Vidyarthi Mithram Book Depot, Kottayam.

Chicago

Mathachan M et al, . 1989. Textbook of physics. : Vidyarthi Mithram Book Depot, Kottayam.

Harvard

Mathachan M. e. a., . (1989). Textbook of physics. : Vidyarthi Mithram Book Depot, Kottayam.

MLA

Mathachan M et al, . Textbook of physics. : Vidyarthi Mithram Book Depot, Kottayam. 1989.