APA استشهاد

Bartle, R. (1963). Introduction to shipping law (2nd ed.). Sweet & Makwell.

استشهاد بنمط شيكاغو

Bartle, Ronald. Introduction to Shipping Law. 2nd ed. London: Sweet & Makwell, 1963.

MLA استشهاد

Bartle, Ronald. Introduction to Shipping Law. 2nd ed. Sweet & Makwell, 1963.