000 00300nam a22000977a 4500
100 _aDemographic research centre
245 _aDepartment of statistics Kariavattom, Trivandrum :
_bstudies in demography /
260 _aTrivandrum :
_bDemographic research centre,
_c1963.
500 _aVol 1
942 _cBK
999 _c527162
_d527162