International Labor Office. (1974). Human resources development: Vocational guidance and vocational training. International Labor Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Labor Office. Human Resources Development: Vocational Guidance and Vocational Training. Geneva: International Labor Office, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Labor Office. Human Resources Development: Vocational Guidance and Vocational Training. International Labor Office, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.