Herman, Michael, Intelligence services in the information age : theory and practice / Michael Herman. - London ; F. Cass, 2001. - xi, 252 p. : ill. ; 25 cm. - Cass series--studies in intelligence, . Includes bibliographical references and index. ISBN: 0714651990 0714681962 (pbk.) LCCN: 2001047012 Subjects--Topical Terms: Intelligence service.Information warfare. LC Class. No.: UB250 / .H47 2001 Dewey Class. No.: 327.12