TY - BOOK ID - 137532879 TI - Geology of the National Capital Region : field trip guidebook AU - Southworth, Scott AU - Burton, William C. AU - Geological Society of America. PY - 2004 PB - Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, DB - UniCat KW - Geology KW - Washington Region KW - Virginia KW - Maryland UR - https://www.unicat.be/uniCat?func=search&query=sysid:137532879 AB - ER -