Unknown. (2023). Progress Report on Forest Administration in the North-West Frontier Province for the Year Ending 1922-23. Forest Research Institute.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Unknown. Progress Report on Forest Administration in the North-West Frontier Province for the Year Ending 1922-23. Forest Research Institute, 2023.
MLA -ийн эшлэл (9 дэх хэвлэлт)Unknown. Progress Report on Forest Administration in the North-West Frontier Province for the Year Ending 1922-23. Forest Research Institute, 2023.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.