How can I import customers csv data into openerp with many2one fields?That is my fields have to be filled into title,country fields of res.partner

How can I import customers csv data into openerp with many2one fields?That is my fields have to be filled into title,country fields of res.partner How can I import customers csv data into openerp with many2one fields?That is my fields have to be filled into title,country fields of res.partner