@book{13973,
	author = {Singh, Narinder.},
	title = {Surveying /},
	publisher = {McGraw-Hill Education,},
	year = {1984.},
	series = {Technical education.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0074519131/chopaconline-20}
}