000 00258nam a2200109Ia 4500
008 210212s9999||||xx |||||||||||||| ||und||
100 _aGair. Vibha
245 0 _aNavya Nyaya logic
260 _c1990
_bBhartiya Vidhya Prakashan
300 _a120p
942 _cSU
999 _c97916
_d97916