Sickle, Jan Van Basic GIS coordinates / Jan van Sickle. - 2nd ed. - Boca Raton, FL : CRC Press, c2010. - xi, 188 p. ISBN: 9781420092318 (hc : alk. paper) Subjects--Topical Terms: Grids (Cartography)--Data processing.Geographic information systems. Dewey Class. No.: 910.285 / SIC-B