Cita APA (7th ed.)
National Research Council (U.S.). Polar Research Board & ebrary, Inc. (1999). Ocean drilling research: An Arctic perspective. National Academy Press.
Cita Chicago (17th ed.)
National Research Council (U.S.). Polar Research Board i Inc ebrary. Ocean Drilling Research: An Arctic Perspective. Washington, D.C.: National Academy Press, 1999.
Cita MLA (9th ed.)
National Research Council (U.S.). Polar Research Board i Inc ebrary. Ocean Drilling Research: An Arctic Perspective. National Academy Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.