TY - BOOK AU - Sen, A.K.Dr, Bhattacharya, A.B . Dr TI - Radar systems and radio aids to navigation SN - 81-7409-081-9 U1 - 621.3848 SEN PY - 2006/// CY - NEW DELHI PB - KHANNA PUBLISHERS KW - RADAR SYSTEMS.RADIO AIDS TO NAVIGATION ER -