00331nam a2200109Ia 4500008004100000020001800041040002900059050002200088100002600110245005600136260002900192230222s9999||||xx |||||||||||||| ||und||  a0-07-239681-4  cChuka University Library  aQD 33.2bS55 2003  aSilberberg, Martin S. 0aChemistry:the molecular nature of matter and change  aMcGrawhillbBostonc2003