Barker, R. (1971). The status of agricultural development in South and SEA as a result of the new food grain technology. International Rice Research Institute.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Barker, Randolf. The Status of Agricultural Development in South and SEA as a Result of the New Food Grain Technology. [Los Baños, Laguna: International Rice Research Institute, 1971.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Barker, Randolf. The Status of Agricultural Development in South and SEA as a Result of the New Food Grain Technology. International Rice Research Institute, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.