00513nam a2200181Ia 4500082001900000100001900019245003500038260002800073300001900101490005000120500000500170690000600175700000500181952010100186964001700287921001000304999001700314  a530.2bW596.LW  aWhitham, G. B.  aLectures on wave propagationb  aNew DelhibNarosac1979  av, 148p. Bibl.  aTIFR Lectures on Mathematics and Physicsv 61  a  a   a  00104070aISIbISId1998-10-12l0o530.2 W596.LWpDP15746r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a16908  c16908d16908