[Koha] I can not find a field to stores language of books in Koha database-new.

Hello,Everybody: I can not find a field to stores language of books in the Koha Database in mysql. Is there a field storing the languages? I don't mean the language of Koha's user interface.I don't need MARC support too. Thanks _________________________________________________________________ 享用世界上最大的电子邮件系统― MSN Hotmail。 http://www.hotmail.com