000 00281nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aGurtu G N&Amp;Razdan S
245 0 _aPhase Rule
260 _bPragathi Prakashan
_c1976
300 _a160p
650 _aChemistry
942 _cBK
999 _c2250
_d2250