@book{47246,
	author = {Agor,R.},
	title = { Textbook of Surveying And Levelling},
	publisher = {Khanna Publishers},
	year = {2015},
	address = {New Delhi},
	edition = {12th},
	note = {Appendix-A 1193-1198p.
Index 1226-1234p.}
}