[Qgis-user] Join multiple values

[labiancamarilena at libero.it]

Dear all,
I would like to know whether the join command, you can associate multiple 
values.
For example, the same municipality has different classes of economic 
activities and corrispondent values of no. of workers. QGIS should associate 
for each municipalities multiple values.
I tried to divide the values ​​individually, but it is very tiring 
Is there a way to put them all?
Thanks
Following the example

Municipality   Economic Section    Workers a.               Workers b.        
Workers c. 
 London              A01                          1200                     
567                      2000
London               A02                           3000                    
900                         789
London               A03                           230                       
98                           456