United States. Committee on Improving the Science and Technology Programs of the National Park Service & ebrary, Inc. (1992). Science and the national parks. National Academy Press.
Copiat
No s'ha pogut copiar
Cita Chicago (17th ed.)
United States. Committee on Improving the Science and Technology Programs of the National Park Service i Inc ebrary. Science and the National Parks. Washington, D.C.: National Academy Press, 1992.
Copiat
No s'ha pogut copiar
Cita MLA (9th ed.)
United States. Committee on Improving the Science and Technology Programs of the National Park Service i Inc ebrary. Science and the National Parks. National Academy Press, 1992.
Copiat
No s'ha pogut copiar
Atenció: Aquestes cites poden no estar 100% correctes.