Salcedo, R. N. (1984). An Analysis of professional competency development in the student teaching program in agriculture in the Philippines. University of Wisconsin.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Salcedo, Raymundo Nacino. An Analysis of Professional Competency Development in the Student Teaching Program in Agriculture in the Philippines. Madison: University of Wisconsin, 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Salcedo, Raymundo Nacino. An Analysis of Professional Competency Development in the Student Teaching Program in Agriculture in the Philippines. University of Wisconsin, 1984.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.