Cita APA (7a ed.)

Ringbom, H. (1997). Competing norms in the law of marine environmental protection: Focus on ship safety and pollution prevention. Kluwer Law International.

Cita Chicago Style (17a ed.)

Ringbom, Henrik. Competing Norms in the Law of Marine Environmental Protection: Focus on Ship Safety and Pollution Prevention. London [etc.]: Kluwer Law International, 1997.

Cita MLA (9a ed.)

Ringbom, Henrik. Competing Norms in the Law of Marine Environmental Protection: Focus on Ship Safety and Pollution Prevention. Kluwer Law International, 1997.