Byerlee, D., & Eicher, C. K. (1972). Rural employment, migration and economic development: Theoretical issues and empirical evidence from Africa. Dept. of Agricultural Economics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Byerlee, Derek, و Carl K. Eicher. Rural Employment, Migration and Economic Development: Theoretical Issues and Empirical Evidence from Africa. East Lansing, Mich: Dept. of Agricultural Economics, 1972.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Byerlee, Derek, و Carl K. Eicher. Rural Employment, Migration and Economic Development: Theoretical Issues and Empirical Evidence from Africa. Dept. of Agricultural Economics, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.