APA (7th ed.) Citation

Langer, W. H., & Recny, C. J. (1978). Map showing unconsolidated materials, Keene quadrangle, New Hampshire-Vermont. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Langer, William H., and Christopher J. Recny. Map Showing Unconsolidated Materials, Keene Quadrangle, New Hampshire-Vermont. Reston, Va.: U.S. Geological Survey, 1978.

MLA (9th ed.) Citation

Langer, William H., and Christopher J. Recny. Map Showing Unconsolidated Materials, Keene Quadrangle, New Hampshire-Vermont. U.S. Geological Survey, 1978.