- 
              
            11Manufacturing and trading associations and product promotion organizations in 28 countries.Foilsithe / Cruthaithe 1966LEABHAR
- 
              
            12
- 
              
            13
- 
              
            14
- 
              
            15
- 
              
            16
- 
              
            17
- 
              
            18Association management, with special reference to trade associationsFoilsithe / Cruthaithe 1952LEABHAR
- 
              
            19
- 
              
            20