APA (7th ed.) Citation

Duckworth, L. (1916). The principles of marine law (3rd ed., rev., re-arranged, and enl.). I. Pitman.

Chicago Style (17th ed.) Citation

Duckworth, Lawrence. The Principles of Marine Law. 3rd ed., rev., re-arranged, and enl. London: I. Pitman, 1916.

MLA (8th ed.) Citation

Duckworth, Lawrence. The Principles of Marine Law. 3rd ed., rev., re-arranged, and enl. I. Pitman, 1916.