000 00273nam a2200109Ia 4500
008 191024s9999||||xx |||||||||||||| ||und||
100 _aRamkumar Ray
245 0 _aVyavaharik Manovigyan
260 _bChowkamba Vidhyabhavan
_aVaranasi
_c1963
650 _aScience
942 _cBK
999 _c54800
_d54800