Cita APA (7th ed.)
National Research Council (U.S.). Committee on Future Roles, Challenges, and Opportunities for the U.S. Geological Survey, & ebrary, Inc. (2001). Future roles and opportunities for the U.S. Geological Survey. National Academy Press.
Cita Chicago (17th ed.)
National Research Council (U.S.). Committee on Future Roles, Challenges, and Opportunities for the U.S. Geological Survey, i Inc ebrary. Future Roles and Opportunities for the U.S. Geological Survey. Washington, D.C.: National Academy Press, 2001.
Cita MLA (9th ed.)
National Research Council (U.S.). Committee on Future Roles, Challenges, and Opportunities for the U.S. Geological Survey, i Inc ebrary. Future Roles and Opportunities for the U.S. Geological Survey. National Academy Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.