Ward, Freeman, 1879-

Recent geological history of the Delaware Valley below the Water Gap / by Freeman Ward. - Harrisburg, Pa. : Dept. of Internal Affairs, Topographic and Geologic Survey, 1938. - v, 76 p. : ill., maps ; 23 cm. - Bulletin G ; 10 .

Includes bibliographical references.

gs 39000031


Geology--Pennsylvania.
Geology--Delaware River Valley (N.Y.-Del. and N.J.)

QE158.D4 / W3