एपीए उद्धरण

(1961). 100 problems in environmental health: A collection of promising research problems. Washington: Kirby Lithograph.

शिकागो स्टाइल उद्धरण

100 Problems in Environmental Health: A Collection of Promising Research Problems. Washington: Kirby Lithograph, 1961.

एमएलए उद्धरण

100 Problems in Environmental Health: A Collection of Promising Research Problems. Washington: Kirby Lithograph, 1961.