Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD), & Philippines. Department of Science and Technology. (2009). Agricultural mechanization in the Philippines. Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD), Department of Science and Technology (DOST).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD), و Philippines. Department of Science and Technology. Agricultural Mechanization in the Philippines. Los Baños, Laguna: Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD), Department of Science and Technology (DOST), 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD), و Philippines. Department of Science and Technology. Agricultural Mechanization in the Philippines. Philippine Council for Agriculture, Forestry and Natural Resources Research and Development (PCARRD), Department of Science and Technology (DOST), 2009.