@book{278468,
	author = {Kadiyali, L R. Lal, N B.},
	title = {Principles and practices of highway engineering : incluiding expressways and airport engineering},
	publisher = {Khanna Publishers},
	year = {2013},
	address = {New Delhi},
	edition = {6th ed.},
	url = {digital/contents/84729.pdf}
}