Sherman, Doug. Keeping your ethical edge sharp : how to cultivate a personal character that is honest, faithful, just, and morally clean / Doug Sherman, William Hendricks. - Colorado Springs, Colo. : NavPress, 1990. - 239 p. ; 24 cm. ISBN: 0891092862 LCCN: 90060206 Subjects--Topical Terms: Christian ethics. LC Class. No.: BJ1251 / .S425 1990 Dewey Class. No.: 241