Great Britain. Forestry Commission. (1950). Thirtieth annual report of the Forestry Commissioners for the year ending September 30th 1949. His Majesty's Stationary Office.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)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.
MLA -ийн эшлэл (9 дэх хэвлэлт)Great Britain. Forestry Commission. Thirtieth Annual Report of the Forestry Commissioners for the Year Ending September 30th 1949. His Majesty's Stationary Office, 1950.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.