Belanger, D. O. (2010). Deep freeze: The United States, the International Geophysical Year, and the origins of Antarctica's age of science. University Press of Colorado.
Dyfyniad Arddull ChicagoBelanger, Dian Olson. Deep Freeze: The United States, the International Geophysical Year, and the Origins of Antarctica's Age of Science. Boulder, Colo.: University Press of Colorado, 2010.
Dyfyniad MLABelanger, Dian Olson. Deep Freeze: The United States, the International Geophysical Year, and the Origins of Antarctica's Age of Science. University Press of Colorado, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.