@book{269,
	author = {B.Rai and " B.P.Choudhury , H.I.Freedman,,,"},
	title = {A Course in Ordinary Differential equations},
	publisher = {Narosa},
	year = {2004},
	address = {NEW DELHI},
	edition = {1ST},
	note = {Quantity Number:  2}
}