Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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