Aeromagnetic map of central Maryland, southern Pennsylvania, and Delaware showing generalized geologic relations of the crystalline rocks /

Bibliographic Details
Main Author:	Fisher, George Wescott, 1937-
Corporate Author:	Williams and Heintz Map Corporation
Other Authors:	Higgins, Michael W., Zietz, Isodore, 1919-
Format:	Map
Language:	English
Published:	Washington, D.C. : Williams & Heintz Map Corporation, [1979?]
Subjects:	Geomagnetism > Maryland > Maps. Geomagnetism > Pennsylvania > Maps. Geomagnetism > Delaware > Maps. Crystalline rocks > Maryland > Maps. Crystalline rocks > Pennsylvania > Maps. Crystalline rocks > Delaware > Maps.

Evans: Maps (2nd floor)