@book{58923,
	author = {Bean, Frank D. and Program for Research on Immigration Policy (U.S.)},
	title = {Undocumented migration to the United States :},
	publisher = {Rand Corp. ;},
	year = {c1990.},
	address = {Santa Monica, CA :},
	note = {Revised presentations made at a conference held at the Urban Institute, July 21, 1989, sponsored by the Program for Research on Immigration Policy.}
}