TY - BOOK ID - 136582745 TI - Results of spirit leveling in Maryland, 1896 to 1911, inclusive AU - Marshall, R. B. AU - Geological Survey (U.S.) AU - Maryland Geological Survey PY - 1914 PB - [Washington, D.C.] : Washington : Department of the Interior, United States Geological Survey, Government Printing Office. DB - UniCat KW - Leveling KW - Bench-marks KW - Maryland KW - Maryland. KW - Altitudes. UR - https://www.unicat.be/uniCat?func=search&query=sysid:136582745 AB - ER -