@book{12402,
	author = { Hurt; Indy.  and Clarke, Keith C .},
	title = {GIS exercise workbook : },
	publisher = {Prentice Hall,},
	year = {2011},
	series = { 	Pearson Prentice Hall series in Geographic Information Science},
	address = {Boston : },
	edition = {5th.ed.},
	note = {Includes index.}
}