Unknown. (2023). Proceedings of the Forestry Conference held on the 9th and 10th December 1937. Forest Research Institute.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Unknown. Proceedings of the Forestry Conference Held on the 9th and 10th December 1937. Forest Research Institute, 2023.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Unknown. Proceedings of the Forestry Conference Held on the 9th and 10th December 1937. Forest Research Institute, 2023.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.