003940000a22001210004500060000800000082002800008245003700036260006000073260000900133300000800142310006000150650006200210  a100  a338.  107  205  483 TEC  aTechno-economic survey of Kerala  aNewdelhi, National council of applied economic research  c1962  a363  aNational council of applied economic research, Newdelhi  aTechno-economic survey-Kerala/economic development-Kerala