एपीए उद्धरण

Otho E. Perkins. (1981). Teacher's guide: Work-a-text in physical science. New York: Globe Book.

शिकागो स्टाइल उद्धरण

Otho E. Perkins. Teacher's Guide: Work-a-text in Physical Science. New York: Globe Book, 1981.

एमएलए उद्धरण

Otho E. Perkins. Teacher's Guide: Work-a-text in Physical Science. New York: Globe Book, 1981.