http://library.bethel.edu.hk/opac/marc?rcn=AGnc
--am xx xxx++000 00000nam a2200000 a 4500++020 |aAE6003++090 |a0000 650++245 10 |aADDED ENTRY --- SUBJECT++500 |a經濟學 見===>Economics++650 |a經濟學++690 |aEconomics