@book{9492,
	author = {Gibson, W. M. and Pollard, B. R.,},
	title = {Symmetry principles in elementary particle physics /},
	publisher = {Cambridge University Press,},
	year = {1976.},
	series = {Cambridge monographs on physics},
	address = {Cambridge [Eng.] ;},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/enhancements/fy1011/74031796-d.html}
}