Não informado. (1950). Rural advisory leaflet. Edinburgh and East of Scotland College of Agriculture.
Cita Chicago Style (17a ed.)Não informado. Rural Advisory Leaflet. Edinburgh, Inglaterra: Edinburgh and East of Scotland College of Agriculture, 1950.
Cita MLA (8a ed.)Não informado. Rural Advisory Leaflet. Edinburgh and East of Scotland College of Agriculture, 1950.
Precaución: Estas citas no son 100% exactas.