Cover image for Water resources investigations in Pennsylvania, 1969
Water resources investigations in Pennsylvania, 1969
Title:
Water resources investigations in Pennsylvania, 1969
Author:
Geological Survey (U.S.). Water Resources Division.
Publication Information:
Washington : U. S. Geological Survey, 1969.
Physical Description:
folder 10 unnumbered pages : maps ; 27 cm
General Note:
Cover title.
Language:
English
Format :
Book