Unknown. (2023). Documents presented to the FAO/IUFRO symposium on Internationally Dangerous Forest Diseases and Insects, Oxford, 20-29 July 1964, Volume I. Oxford.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Unknown. Documents Presented to the FAO/IUFRO Symposium on Internationally Dangerous Forest Diseases and Insects, Oxford, 20-29 July 1964, Volume I. Oxford, 2023.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Unknown. Documents Presented to the FAO/IUFRO Symposium on Internationally Dangerous Forest Diseases and Insects, Oxford, 20-29 July 1964, Volume I. Oxford, 2023.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.