TY - BOOK AU - Chang,Kang-Tsung TI - Introduction to geographic information systems SN - 9780073051154 U1 - 910.285 22 PY - 2008/// CY - New delhi PB - Tata McGraw-Hill KW - Geographic information systems N1 - Includes bibliographical references and index UR - http://www.loc.gov/catdir/toc/ecip0617/2006023787.html ER -