Cohen, Sanford Labor in the United States Sanford Cohen. - 2. ed. - Columbus, Ohio Merrill c1966. - xv, 640 p. Includes bibliographical references. LCCN: 66028641 Subjects--Topical Terms: Labor--United States. LC Class. No.: HD8072 / .C72 1966 Dewey Class. No.: 331.10973 / C678l5