Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.