(2014). Peterson's graduate programs in the physical sciences, mathematics, agricultural sciences, the environment & natural resources 2014 (Forty-eighth edition.). Peterson's.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Peterson's Graduate Programs in the Physical Sciences, Mathematics, Agricultural Sciences, the Environment & Natural Resources 2014. Forty-eighth edition. Albany, New York: Peterson's, 2014.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Peterson's Graduate Programs in the Physical Sciences, Mathematics, Agricultural Sciences, the Environment & Natural Resources 2014. Forty-eighth edition. Peterson's, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.