Encyclopedia of information systems and services / editor Anthony T. Kruzas, associate editor Linda Varekamp Sullivan, John Schmittroth, Jr., assistant editors Randa J. D'Aoust, Lisa Lehman, Doris Sears, Doris Morris Maxfield. - Kruzas, Anthony Thomas; Sullivan, Linda Varekamp; Schmittroth, John; D'Aoust, Randa J.; Lehman, Lisa; Sears, Doris; Maxfield, Doris Morris (Gale Research Company, 1978)