McNamara, Robert S., 1916- The essence of security : reflections in office/ Robert S. McN amara. - London : Hodder & Stoughton, 1968. - iii-xiv, 176 p. ; 23 cm. Bibliography: p. 167-168. Subjects--Topical Terms: Strategy.World politics. Subjects--Geographic Terms: United States--Defenses. Dewey Class. No.: 353.6 MACN