Rana, M. (1990). Forest extension. Bishen Singh, Mahendra Pal Singh.
シカゴスタイル引用形Rana, M.S. Forest Extension. Dehra Dun: Bishen Singh, Mahendra Pal Singh, 1990.
MLA引用形式Rana, M.S. Forest Extension. Bishen Singh, Mahendra Pal Singh, 1990.
警告: この引用は必ずしも正確ではありません.