000 00368nam a2200133Ia 4500
008 241226s9999 xx 000 0 und d
020 _a8172361424
082 _a600
_bPHO
100 _aPhondke, Bal.
245 0 _aHow?
260 _aNew Delhi :
_bNational Institute of Science Communication (CSIR) ,
_c2001.
300 _a100 :
650 _aScience and Technology
999 _c176801
_d176801