Surficial geology of the Ayer quadrangle, Massachusetts /

Bibliographic Details
Main Author:	Jahns, Richard H. (Richard Henry), 1915-1983
Format:	Government Document Map
Language:	English
Published:	Washington, D.C. : U.S. Geological Survey, 1953.
Series:	Geologic quadrangle map ; GQ-21.
Subjects:	Geology > Massachusetts > Middlesex County > Maps. Geology > Massachusetts > Worcester County > Maps.

Evans: Maps File (2nd floor)