Turnham, D., & Jaeger, I. (1971). The employment problem in less developed countries: A review of evidence. Development Centre of the Organisation for Economic Co-operation and Development.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Turnham, David, و Ingelies Jaeger. The Employment Problem in Less Developed Countries: A Review of Evidence. [Paris]: Development Centre of the Organisation for Economic Co-operation and Development, 1971.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Turnham, David, و Ingelies Jaeger. The Employment Problem in Less Developed Countries: A Review of Evidence. Development Centre of the Organisation for Economic Co-operation and Development, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.