00331    a2200121   4500020001500000082001300015100001800028245004800046260005500094300001600149650002600165700001800191  a0748717188  a574bTOO  aToole, Glenn   aunderstanding biology bfor advanced level   aCheltenhambStanley Thornes Publishersc1987g1995  a630p.c27cm  aLIFE SCIENCES BIOLOGY  aToole, Susan