00373nam a22001457a 450000500170000000800410001702000150005805000190007310000130009224500250010526000500013030000200018070000120020070000150021220260312132042.0260312b        |||||||| |||| 00| 0 eng d  a0435575740  aQ161.2.M4 1971  aMee A. J  aScience for the 70's  aLondonbHeinemann Educational books ltdc1971  a148p, ;illbpbk  aP. Boyd  aD. Ritchie