@book{28925,
	author = {Arya, R.L.  and Arya, Keshav },
	title = {Pulse production=Dalhan utpadan/by R.L. Arya, Keshav Arya, and Ajit Kumar},
	publisher = {Kalyani Publishers;},
	year = {2008.},
	address = {Ludhiana:}
}