00381nam a22001457i 4500001001000000005001700010008004100027082001800068100001800086245003100104260003300135300001700168650003200185020001800217SXC01314320260819093536.0260101s1963    ii            000 0 eng d  a540 WEL-C222  aWellings, A W10aChemistry /cWellings, A W  abJohn Murray, London,c1963  ap. ;c22 cm. 0aChemistry & allied sciences  a9780716700029