Great Britain. Forestry Commission. (1950). Thirtieth annual report of the Forestry Commissioners for the year ending September 30th 1949. His Majesty's Stationary Office.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Great Britain. Forestry Commission. Thirtieth Annual Report of the Forestry Commissioners for the Year Ending September 30th 1949. London: His Majesty's Stationary Office, 1950.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Great Britain. Forestry Commission. Thirtieth Annual Report of the Forestry Commissioners for the Year Ending September 30th 1949. His Majesty's Stationary Office, 1950.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.