Smythies, E. (2023). Afforestation of Ravine Lands in the Etawah district, United Provinces. Forest Research Institute.
芝加哥风格引文Smythies, E.A. Afforestation of Ravine Lands in the Etawah District, United Provinces. Forest Research Institute, 2023.
MLA引文Smythies, E.A. Afforestation of Ravine Lands in the Etawah District, United Provinces. Forest Research Institute, 2023.
警告：这些引文格式不一定是100％准确.