Philippines. Ministry of Education. Bureau of Public Schools & National Curriculum Development Workshop on Population Education (2nd : Manila : 1971). (1971). Resource units and scope and sequence in Population Education. s.n.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. Ministry of Education. Bureau of Public Schools و National Curriculum Development Workshop on Population Education (2nd : Manila : 1971). Resource Units and Scope and Sequence in Population Education. [Manila: s.n, 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. Ministry of Education. Bureau of Public Schools و National Curriculum Development Workshop on Population Education (2nd : Manila : 1971). Resource Units and Scope and Sequence in Population Education. s.n, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.