APA استشهاد

Porges, W. T. (1963). The merchant shipping acts (6th ed.). Stevens.

استشهاد بنمط شيكاغو

Porges, Waldo Thomas. The Merchant Shipping Acts. 6th ed. London: Stevens, 1963.

MLA استشهاد

Porges, Waldo Thomas. The Merchant Shipping Acts. 6th ed. Stevens, 1963.