Cita APA

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

Citación estilo Chicago

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

Cita MLA

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