000 00370nam a2200121Ia 4500
008 160906s9999 xx 000 0 und d
110 _aSri Venkateswara University, Population studies Center
245 _aPopulation education teaching units:Higher secondaru level
260 _aTirupati
260 _bSri Venkateswara University
260 _c1976
300 _avi; 172
999 _c103565
_d103565