توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

North Carolina. Crop Reporting Service, North Carolina. Division of Markets, & United States. Bureau of Agricultural Economics. North Carolina farm census. Crop Reporting Service.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

North Carolina. Crop Reporting Service, North Carolina. Division of Markets, و United States. Bureau of Agricultural Economics. North Carolina Farm Census. Raleigh, N.C.: Crop Reporting Service.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

North Carolina. Crop Reporting Service, et al. North Carolina Farm Census. Crop Reporting Service.