North Carolina. Crop Reporting Service, North Carolina. Division of Markets, & United States. Bureau of Agricultural Economics. North Carolina farm census. Crop Reporting Service.
Chicago-referens (17:e uppl.)North Carolina. Crop Reporting Service, North Carolina. Division of Markets, och United States. Bureau of Agricultural Economics. North Carolina Farm Census. Raleigh, N.C.: Crop Reporting Service.
MLA-referens (8:e uppl.)North Carolina. Crop Reporting Service, et al. North Carolina Farm Census. Crop Reporting Service.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.