Não informado. (1950). Rural advisory leaflet. Edinburgh and East of Scotland College of Agriculture.
Chicago-Zitierstil (17. Ausg.)Não informado. Rural Advisory Leaflet. Edinburgh, Inglaterra: Edinburgh and East of Scotland College of Agriculture, 1950.
MLA-Zitierstil (8. Ausg.)Não informado. Rural Advisory Leaflet. Edinburgh and East of Scotland College of Agriculture, 1950.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.