--mm hk  eng
++000    00000nmm a2200000 a 4500
++090    |a540 CHU
++100    |aChung L.H.M.
++245 00 |a21st Century Chemistry Question Bank Vol 1 & 2 |h[CD]
++250    |aUpgraded Edition 2006
++260    |aHong Kong:|bJing Kung,|c2006.
++300    |a1 CD
++500    |aTopics 1-9
++690    |aChemistry_化學