Otis, George, 1953- God's trademarks : how to determine whether a message, ministry, or strategy is truly from God / George Otis, Jr. - Grand Rapids, Mich. : Chosen Books, c2000. - 155 p. ; 22 cm. Includes bibliographical references (p. 145-149) and index. ISBN: 0800792815 (pbk.) LCCN: 00060265 Subjects--Topical Terms: Discernment of spirits. LC Class. No.: BV5083 .O88 2000 Dewey Class. No.: 231.7