APA

Gupta R. S. e. a., . (1990). Senior school physics for class XII. : Frank Brothers & Co.

Chicago

Gupta R S et al, . 1990. Senior school physics for class XII. : Frank Brothers & Co.

Harvard

Gupta R. S. e. a., . (1990). Senior school physics for class XII. : Frank Brothers & Co.

MLA

Gupta R S et al, . Senior school physics for class XII. : Frank Brothers & Co. 1990.