Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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