%0 Generic %E Varljen, MD., %E Wehrmann, HA., %@ 9780803151888 (e-ISBN) %@ 9780803114715 %@ 0803114710 %T Using AutoCAD as a Desktop Geographic Information System for Hydrogeological Investigations / %U https://ezaccess.libraries.psu.edu/login?url=https://www.astm.org/DIGITAL_LIBRARY/STP/PAGES/STP24198S.htm