@book{13368,
	author = {Wheelan, Susan A.},
	title = {Advances in field theory /},
	publisher = {Sage Publications,},
	year = {1990.},
	address = {Newbury Park, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/90008756-d.html}
}