00277nam a2200109Ia 4500008004100000020001800041040002900059050002200088100001600110245001200126260002900138230222s9999||||xx |||||||||||||| ||und||  a9780435670147  cChuka University Library  aQC 21.2bA23 1989  aAbbott,A.F. 0aPHYSICS  aHEINEMAN EbOxfordc1989