Não informado. (1946). Farm equipment retailing. National Retail Farm Equipment Association.
Chicago-referens (17:e uppl.)Não informado. Farm Equipment Retailing. Washington: National Retail Farm Equipment Association, 1946.
MLA-referens (8:e uppl.)Não informado. Farm Equipment Retailing. National Retail Farm Equipment Association, 1946.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.