Ozinga, James R. Altruism / James R. Ozinga. - Westport, Conn. : Praeger, 1999. - xvii, 174 p. ; 23 cm. Includes bibliographical references and index. ISBN: 0275967352 (alk. paper) RM232.96 LCCN: 99-022137 Subjects--Topical Terms: Altruism.