APA استشهاد

Smith, D. W. (1983). Marine auxiliary machinery (Ed.6.). Butterworths.

استشهاد بنمط شيكاغو

Smith, David W. Marine Auxiliary Machinery. Ed.6. London: Butterworths, 1983.

MLA استشهاد

Smith, David W. Marine Auxiliary Machinery. Ed.6. Butterworths, 1983.