00324    a2200121   4500020001600000082001300016100001800029245004700047260005000094300001600144650002000160700002200180  a 019431457x  a425bSWA  aSwan, Michael  aHow english worksba grammar practice book  aNew YorkbOxford University Pressc1997g1998  a314p.c25cm  aEnglish grammar  aWalter, catherine