TY - RPRT TI - U.S. Geological Survey National Computer Technology Meeting; Program and abstracts, May 7-11, 1990 AU - B. H. Balthrop AU - E.G. G. Baker PY - 1990 DO - 10.3133/ofr90161 UR - https://pubs.usgs.gov/publication/ofr90161 ID - ofr90161 ER -