The caves of Northampton County, Pennsylvania /
compiled and edited by Dean H. Snyder.
|Related Names:||Snyder, Dean H.|
State College, Pa. : Mid-Appalachian Region of the National Speleological Society, c1989.
Caves / Pennsylvania /
Map on folded leaf inserted.
46 p. (1 folded) :
ill., maps ;
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|Limited (search only) no.16||Pennsylvania State University|