000 00320nam a2200133Ia 4500
008 141027s9999||||xx |||||||||||||| ||und||
245 _aSamanya Vidnyan Pustak Pachave
260 _aMumbai
260 _bHomi Bhabha Centre For Science Education
260 _c1982
300 _aiii; 132
300 _bpb
300 _c8x5
999 _c82883
_d82883