00339nam a2200145Ia 4500003000500000008004100005020000900046040000900055041001200064082002500076100001700101245005200118260000900170650001400179NDCL180829s9999||||ii |||||||||||||| ||eng||  a6163  aNDCL  aEnglish  a541.396 BGI216th ed  aBrown, G .I. 0aNew guide to modern valency theorycG .I. Brown  c1975  aChemistry