Citazione APA

Page, R. C., & Gardener, W. A. (1971). Petrolium tankship safety. Maritime press.

Stile di citazione Chicago

Page, R C., e Ward A. Gardener. Petrolium Tankship Safety. United Kingdom: Maritime press, 1971.

Citazione MLA

Page, R C., e Ward A. Gardener. Petrolium Tankship Safety. Maritime press, 1971.