00309nam a2200109Ia 4500008004100000040003800041100001800079245003400097260003700131300001700168653001400185211215s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aGray, Harry B 0aBasic principles in chemistry  bW A Bengamin IncaNew Yorkc1967  axvii,595p p.  aChemistry