Social Environmental Task Force. (1987). Encroachment into ancestral lands: Some policy implications. Forestry Development Center, College of Forestry, University of the Philippines at Los Banos.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Social Environmental Task Force. Encroachment into Ancestral Lands: Some Policy Implications. College, Laguna: Forestry Development Center, College of Forestry, University of the Philippines at Los Banos, 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Social Environmental Task Force. Encroachment into Ancestral Lands: Some Policy Implications. Forestry Development Center, College of Forestry, University of the Philippines at Los Banos, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.