@book{3463,
	author = {Lo, C. P. and Yeung, Albert K. W.},
	title = {Concepts and techniques of geographic information systems /},
	publisher = {Pearson Prentice Hall,},
	year = {c2007 [reprinted 2009].},
	address = {Upper Saddle River, NJ ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0615/2006019006.html}
}