TY  - BOOK
AU  - Bayley,William Shirley
TI  - Pre-Cambrian geology and mineral resources of the Delaware Water Gap and Easton quadrangles, New Jersey and Pennsylvania,
T2  - U. S. Geological Survey.  Bulletin 920
AV  - QE75 .B9 no. 920
U1  - 553.09748557.3 
PY  - 1941///
CY  - Washington
PB  - U.S. Gov't. Print. Off.
KW  - Geology
KW  - New Jersey
KW  - Pennsylvania
KW  - Mines and mineral resources
KW  - Geology, Stratigraphic
KW  - Precambrian
KW  - Delaware Water Gap (N.J. and Pa.)
N1  - At head of title: United States Department of the Interior ... Geological Survey; Folded map in pocket; Bibliographical foot-notes
ER  -