Welter, Paul, 1928- How to help a friend / Paul Welter. - Wheaton, Ill. : Tyndale House Publishers, c1978. - 315 p. : ill. ; 21 cm. Includes bibliographical references and index. ISBN: 0842315217 : LCCN: 77083560 Subjects--Topical Terms: Helping behavior. LC Class. No.: BV4012 / .W44 Dewey Class. No.: 158