APA (7th ed.) Citation

Massachusetts. Geological Survey, New Hampshire. Geological Survey, Walsh, G. J., Jahns, R. H., & Aleinikoff, J. N. (2013). Bedrock geologic map of the Nashua south quadrangle, Hillsborough County, New Hampshire and Middlesex County, Massachusetts. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Massachusetts. Geological Survey, New Hampshire. Geological Survey, Gregory J. Walsh, Richard H. Jahns, and John Nicholas Aleinikoff. Bedrock Geologic Map of the Nashua South Quadrangle, Hillsborough County, New Hampshire and Middlesex County, Massachusetts. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 2013.

MLA (9th ed.) Citation

Massachusetts. Geological Survey, et al. Bedrock Geologic Map of the Nashua South Quadrangle, Hillsborough County, New Hampshire and Middlesex County, Massachusetts. U.S. Department of the Interior, U.S. Geological Survey, 2013.