Unknown. (2023). Progress Report of Forest Research Work in India for the Year 1919-20: Including the Administration Report of the Forest Research Institute, Dehra Dun. Forest Research Institute, Dehradun.
芝加哥风格引文Unknown. Progress Report of Forest Research Work in India for the Year 1919-20: Including the Administration Report of the Forest Research Institute, Dehra Dun. Forest Research Institute, Dehradun, 2023.
MLA引文Unknown. Progress Report of Forest Research Work in India for the Year 1919-20: Including the Administration Report of the Forest Research Institute, Dehra Dun. Forest Research Institute, Dehradun, 2023.
警告：这些引文格式不一定是100％准确.