एपीए उद्धरण

(1967). Encyclopaedia Britannica. Volume 18th: Plastics to razin. Chicago: Benton W..

शिकागो स्टाइल उद्धरण

Encyclopaedia Britannica. Volume 18th: Plastics to Razin. Chicago: Benton W., 1967.

एमएलए उद्धरण

Encyclopaedia Britannica. Volume 18th: Plastics to Razin. Chicago: Benton W., 1967.