@book{29532,
	author = {Rao, J.S. and Gupta, K.},
	title = {Introductory course on theory and practice of mechanical vibrations /},
	publisher = {New Age International Ltd Publishers,},
	year = {1999.},
	address = {New Delhi :},
	edition = {2nd ed.},
	note = {Includes index.}
}