TY - BOOK ID - 127044588 TI - Computer software for spatial data handling. 1., Full geographic information systems AU - Marble, D.F. AU - Calkins, H. PY - 1980 PB - Ottawa: Commission on geographical data sensing and processing, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:127044588 AB - ER -