TY - BOOK ID - 138509675 TI - Disturbed zones : indicators of subsurface faults and possible hydrocarbon traps in the valley and ridge and Appalachian plateau provinces of Pennsylvania, Maryland, Virginia, and West Virginia AU - Pohn, Howard A. AU - Purdy, Terri L. PY - 1988 PB - Washington (D.C.): US. Government printing office DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:138509675 AB - ER -