@book{593981,
	author = {Wells, Dare A.,},
	title = {Schaum's outline of theory and problems of Lagrangian dynamics,},
	publisher = {Schaum Pub. Co.},
	year = {[1967]},
	series = {Schaum's outline series},
	address = {New York,},
	url = {http://www.loc.gov/catdir/description/mh031/68000309.html}
}