@book{30099,
	author = {Beer, Ferdinand P. and Johnston, E. Russell},
	title = {Vector mechanics for engineers.},
	publisher = {McGraw-Hill,},
	year = {c1997.},
	address = {New York :},
	edition = {6th ed.},
	note = {Also issued in two separate volumes: Vector mechanics for engineers : statics, 6th ed., and Vector mechanics for engineers : dynamics, 6th ed.}
}