एपीए उद्धरण

Longhurst, R. (1973). Geometrical & physical optics (3rd ed.). Orient Longman.

शिकागो स्टाइल उद्धरण

Longhurst, R.S. Geometrical & Physical Optics. 3rd ed. New Delhi: Orient Longman, 1973.

एमएलए उद्धरण

Longhurst, R.S. Geometrical & Physical Optics. 3rd ed. Orient Longman, 1973.