Unknown. (2023). Dry Zone Afforestation Symposium January-February 1959: State experience papers. Forest Research Institute.
芝加哥风格引文Unknown. Dry Zone Afforestation Symposium January-February 1959: State Experience Papers. Forest Research Institute, 2023.
MLA引文Unknown. Dry Zone Afforestation Symposium January-February 1959: State Experience Papers. Forest Research Institute, 2023.
警告：这些引文格式不一定是100％准确.