@book{28451,
	author = {Freed, Daniel S. and Morrison, David R.},
	title = {Quantum field theory, supersymmetry, and enumerative geometry},
	publisher = {American Mathematical Society,},
	year = {2006},
	series = {IAS/PARK city Mathematics series },
	address = {Providence:},
	note = {"Purchased under NBHM grant for the year 2006-2007"}
}