Luttwak, Edward. The grand strategy of the Roman Empire from the first century A.D. to the third / Edward N. Luttwak. - Baltimore : Johns Hopkins University Press, c1976. - xii, 255 p. : ill. ; 24 cm. Includes index. Bibliography: p. 233-246. ISBN: 080181863X Subjects--Topical Terms: Military history, Ancient.Strategy. Subjects--Geographic Terms: Rome--Army. LC Class. No.: U35 / .L8 Dewey Class. No.: 355.03/303/7