ILO-ALEC National Seminar/Workshop for Trade Union Welfare and Education Officers. (1974). Population education for trade union officers: Papers. Asian Labor Education Center, University of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ILO-ALEC National Seminar/Workshop for Trade Union Welfare and Education Officers. Population Education for Trade Union Officers: Papers. Quezon City: Asian Labor Education Center, University of the Philippines, 1974.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ILO-ALEC National Seminar/Workshop for Trade Union Welfare and Education Officers. Population Education for Trade Union Officers: Papers. Asian Labor Education Center, University of the Philippines, 1974.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.