--am hk  eng
++000    00000nam a2200000 a 4500
++020    |a9623598785
++090    |a425 POT
++100    |aPotter, John
++245 10 |aGrammar Explained 1 : Unit 15
++250    |a8th reprinted
++260    |aHong Kong :|bLongman,|c1997
++300    |a1v.:|bill. ;|c26 cm.
++690    |aEnglish Language_英國語文
++700    |aVickers, Clare