National Council of Applied Economic Research. (1961). Techno-economic survey of Tripura. National Council of Applied Economic Research.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)National Council of Applied Economic Research. Techno-economic Survey of Tripura. New Delhi: National Council of Applied Economic Research, 1961.
MLA -ийн эшлэл (9 дэх хэвлэлт)National Council of Applied Economic Research. Techno-economic Survey of Tripura. National Council of Applied Economic Research, 1961.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.