Cita APA (7th ed.)
National Research Council (U.S.). Committee on Global and International Geology & ebrary, Inc. (1987). International role of U.S. geoscience. National Academy Press.
Cita Chicago (17th ed.)
National Research Council (U.S.). Committee on Global and International Geology i Inc ebrary. International Role of U.S. Geoscience. Washington, D.C.: National Academy Press, 1987.
Cita MLA (9th ed.)
National Research Council (U.S.). Committee on Global and International Geology i Inc ebrary. International Role of U.S. Geoscience. National Academy Press, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.