APA (7th ed.) Citation

Geological Survey (U.S.), Koteff, C., Stone, B. D., Massachusetts. Department of Public Works., & New Hampshire. Department of Resources and Economic Development. (1990). Surficial geologic map of the Townsend quadrangle, Middlesex and Worcester counties, Massachusetts and Hillsborough County, New Hampshire. The Survey ; For sale by Map Distribution.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Carl Koteff, Byron D. Stone, Massachusetts. Department of Public Works, and New Hampshire. Department of Resources and Economic Development. Surficial Geologic Map of the Townsend Quadrangle, Middlesex and Worcester Counties, Massachusetts and Hillsborough County, New Hampshire. Reston, Va. : Denver, CO: The Survey ; For sale by Map Distribution, 1990.

MLA (8th ed.) Citation

Geological Survey (U.S.), et al. Surficial Geologic Map of the Townsend Quadrangle, Middlesex and Worcester Counties, Massachusetts and Hillsborough County, New Hampshire. The Survey ; For sale by Map Distribution, 1990.