एपीए उद्धरण

Marshall, J. (1971). guinness book of air: Facts and feats. Guinness Superlative.

शिकागो स्टाइल उद्धरण

Marshall, John. Guinness Book of Air: Facts and Feats. Middlesex: Guinness Superlative, 1971.

एमएलए उद्धरण

Marshall, John. Guinness Book of Air: Facts and Feats. Guinness Superlative, 1971.