Ryan, M. J. Battlefield command systems / M.J. Ryan. - 1st English ed. - London : Brassey's, 2000. - 192 p. : ill. ; 25 cm. - Land warfare ; v. 7 . Includes index. ISBN: 1857532899 ISSN: LCCN: 00362684 Subjects--Topical Terms: Command and control systems. LC Class. No.: UB212 / .R95