Whitehead, R. L. (1994). Ground water atlas of the United States. U.S. Geological Survey ; For Sale by Map Distribution.
Style de citation Chicago (17e éd.)Whitehead, R. L. Ground Water Atlas of the United States. Reston, Va. : Denver, Colo.: U.S. Geological Survey ; For Sale by Map Distribution, 1994.
Style de citation MLA (8e éd.)Whitehead, R. L. Ground Water Atlas of the United States. U.S. Geological Survey ; For Sale by Map Distribution, 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.