000			00431nam a2200133Ia 4500
008			211215s9999 xx 000 0 und d
040			_cJayakar Knowledge Resource Centre
100			_aElderfield, R C
245		0	_aHeterocyclic compounds vol viii: tetrazoles, tetrazines, and purines and related ring systems
260			_bJohn Wiely and Sons, Inc _aNew York _c1967
300			_avii,462 p.
653			_aChemistry,
942			_c1
999			_c100687 _d100687