एपीए उद्धरण

Jackson, N., & Penn, P. Dictionary of natural resources and their principal uses/2nd ed (2nd ed.).

शिकागो स्टाइल उद्धरण

Jackson, Nora, और Philip Penn. Dictionary of Natural Resources and Their Principal Uses/2nd Ed. 2nd ed.

एमएलए उद्धरण

Jackson, Nora, और Philip Penn. Dictionary of Natural Resources and Their Principal Uses/2nd Ed. 2nd ed.