Unknown. (2023). Progress report on forest administration in the North-West Frontier Province for the year ending 31st March 1939. Forest Research Institute.
Citace podle Chicago (17th ed.)Unknown. Progress Report on Forest Administration in the North-West Frontier Province for the Year Ending 31st March 1939. Forest Research Institute, 2023.
Citace podle MLA (9th ed.)Unknown. Progress Report on Forest Administration in the North-West Frontier Province for the Year Ending 31st March 1939. Forest Research Institute, 2023.
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