Philippine Council for Agriculture and Resources Research and Development. (1976). The Philippines recommends for integrated farming systems. PCARRD.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippine Council for Agriculture and Resources Research and Development. The Philippines Recommends for Integrated Farming Systems. [Los Banos, Laguna]: PCARRD, 1976.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippine Council for Agriculture and Resources Research and Development. The Philippines Recommends for Integrated Farming Systems. PCARRD, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.