Clotfelter, Charles T. Selling hope : state lotteries in America / Charles T. Clotfelter and Philip J. Cook. - Cambridge, Mass. : Harvard University Press, c1989. - xii, 323 p. : ill. ; 25 cm. Includes index. ISBN: 0674800974 (alk. paper) LCCN: 89032398 LC Class. No.: HG6126 .C55 1989 / .C55 1989 Dewey Class. No.: 336.1/7/0973