Fehr, Howard F. Unified mathematics course II / Howard F. Fehr, James T. Fey and Thomas J. Hill. - Menlo Park, Calif. : Addison-Wesley, 1972. - v, 371 p. : ill. - Addison-Wesley innovative series . ISBN: 0201018365 LCCN: 88900857 Subjects--Topical Terms: Mathematics--Study and teaching.