--am hk  eng
++000    00000nam a2200000 a 4500
++020    |a9789624072310 (Book A)
++020    |a9789624072327 (Book B)
++090    |a330 LAU
++100    |aLau, Jason C. K.
++245 10 |aEssential economics conventional questions for HKDSE /|cJason C. K. Lau.
++250    |a1st ed.
++260    |aHong Kong :|bVision Publishing Co. Ltd,|c2011.
++300    |a2 v. :|bill. ;|c26 cm +|e1 solution guide
++490 0  |aEssential economics series
++690    |aEconomics.