Jahns, R. H. (1966). Surficial geologic map of the Greenfield quadrangle, Franklin County, Massachusetts. The Survey.
Chicago Style (17th ed.) CitationJahns, Richard H. Surficial Geologic Map of the Greenfield Quadrangle, Franklin County, Massachusetts. Washington, D.C.: The Survey, 1966.
MLA (9th ed.) CitationJahns, Richard H. Surficial Geologic Map of the Greenfield Quadrangle, Franklin County, Massachusetts. The Survey, 1966.
Warning: These citations may not always be 100% accurate.