00453nam a2200169Ia 4500082002400000100001800024245002800042260003600070300001500106500000500121690000600126700000500132952010500137964001700242921000900259999001500268  a355.03(54)bR215.DW  aRao, P. V. R.  aDefence without driftb  aBombaybPopular Prakashanc1970  axii, 351p.  a  a   a  00104070aISIbISId1998-09-01l0o355.03(54) R215.DWpDP4353r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a7629  c7629d7629