00279nam a2200097Ia 4500008004100000082001200041100002400053245008500077260000900162300001000171190415s9999    xx            000 0 und d  aRC.0090  aChakraborty, Debesh 0aMigration in north-eastern region of India during 1901-81 : Trend, pattern and i  c1997  a186p.