@book{55169,
	author = {Duggal, S. K.},
	title = {Surveying:  Vol I},
	publisher = {McGraw Hill,},
	year = {2014.},
	address = {New Delhi:},
	edition = {4th edition.},
	url = {http://10.10.170.122:8080/browse/book/22881}
}