Unknown. (2023). Annual report of the Northern Forest Rangers College, Dehradun for the Year 1962-63. Forest Research Institute, Dehradun.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Unknown. Annual Report of the Northern Forest Rangers College, Dehradun for the Year 1962-63. Forest Research Institute, Dehradun, 2023.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Unknown. Annual Report of the Northern Forest Rangers College, Dehradun for the Year 1962-63. Forest Research Institute, Dehradun, 2023.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.