Dyfyniad APA

Page, R., & Gardner, W. A. (1971). Petroleum Tankship Safety. Maritime press.

Dyfyniad Arddull Chicago

Page, R.C, and Ward. A. Gardner. Petroleum Tankship Safety. London: Maritime press, 1971.

Dyfyniad MLA

Page, R.C, and Ward. A. Gardner. Petroleum Tankship Safety. Maritime press, 1971.

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