Unknown. (2023). Organization of the Forest Research Institute and Colleges (as on 1st July 1958). Forest Research Institute, Dehradun.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Unknown. Organization of the Forest Research Institute and Colleges (as on 1st July 1958). Forest Research Institute, Dehradun, 2023.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Unknown. Organization of the Forest Research Institute and Colleges (as on 1st July 1958). Forest Research Institute, Dehradun, 2023.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.