APA استشهاد

Harvald, S. V. A. A. (1983). Resistance and propulsion of ships. John Wiley.

استشهاد بنمط شيكاغو

Harvald, S V A A. Resistance and Propulsion of Ships. New York: John Wiley, 1983.

MLA استشهاد

Harvald, S V A A. Resistance and Propulsion of Ships. John Wiley, 1983.