00423nam a22001577a 4500008004500000082001700045100001800062245003800080250000800118260003600126300001000162650003100172650001700203650001600220700002900236210119b       2003    ||||| |||| 00| 0 eng d  a623.893bBHA  aBhatia, A. G.  aModern electronic navigation aids  a6th  aMumbaibLata publicationsc2003  a180p.  aGlobal positioning systems  aEcho sounder  aDoppler log  aSinha, S. K. eCo-author