APA

Sivaramakrishna Iyer K. e. a., . (1979). BSc practical physics. : .

Chicago

Sivaramakrishna Iyer K et al, . 1979. BSc practical physics. : .

Harvard

Sivaramakrishna Iyer K. e. a., . (1979). BSc practical physics. : .

MLA

Sivaramakrishna Iyer K et al, . BSc practical physics. : . 1979.