Cita APA (7th ed.)
ebrary, Inc. (1995). Clean ships, clean ports, clean oceans: Controlling garbage and plastic wastes at sea. National Academy Press.
Cita Chicago (17th ed.)
ebrary, Inc. Clean Ships, Clean Ports, Clean Oceans: Controlling Garbage and Plastic Wastes at Sea. Washington, D.C.: National Academy Press, 1995.
Cita MLA (9th ed.)
ebrary, Inc. Clean Ships, Clean Ports, Clean Oceans: Controlling Garbage and Plastic Wastes at Sea. National Academy Press, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.