Field, R. M. (1936). Natural resources of the United States: A basics for economic Geography. New York: Barnes and Noble.
Style de citation ChicagoField, Richard M. Natural Resources of the United States: A Basics for Economic Geography. New York: Barnes and Noble, 1936.
Style de citation MLAField, Richard M. Natural Resources of the United States: A Basics for Economic Geography. New York: Barnes and Noble, 1936.
Attention : ces citations peuvent ne pas être correctes à 100%.