Drilon, J. D. (1977). High-level agricultural manpower in Indonesia and the Philippines. Southeast Asian Regional Center for Graduate Study and Research in Agriculture (SEARCA).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Drilon, Jose D. High-level Agricultural Manpower in Indonesia and the Philippines. College, Laguna: Southeast Asian Regional Center for Graduate Study and Research in Agriculture (SEARCA), 1977.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Drilon, Jose D. High-level Agricultural Manpower in Indonesia and the Philippines. Southeast Asian Regional Center for Graduate Study and Research in Agriculture (SEARCA), 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.