Não informado. (1950). Rural advisory leaflet. Edinburgh and East of Scotland College of Agriculture.
Style de citation Chicago (17e éd.)Não informado. Rural Advisory Leaflet. Edinburgh, Inglaterra: Edinburgh and East of Scotland College of Agriculture, 1950.
Style de citation MLA (8e éd.)Não informado. Rural Advisory Leaflet. Edinburgh and East of Scotland College of Agriculture, 1950.
Attention : ces citations peuvent ne pas être correctes à 100%.