000 00305nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a541.224 B877
100 _aBROWN,G.I
245 0 _aNEW GUIDE TO MODERN VALENCY THEORY(SI UNITS)
260 _aLONDON
_bELBS
_c1959
300 _a21X14
942 _cBK
_2DDC
999 _c17084
_d17084