Wink, Walter Unmasking the powers : the invisible forces that determine human existence / Walter Wink. - Philadelphia : Fortress Press, 1986. - xii, 227 p. ; 23 cm. - Powers v. 2 . - Powers v. 2 . Bibliography: p. 174-217. ISBN: 0800619021 Subjects--Topical Terms: Powers (Christian theology) Dewey Class. No.: 235