Planning Research and Action Institute. (1969). An evaluation of ravine reclamation programmes in Uttar Pradesh, 1952-1968. Planning Research and Action Institute.
芝加哥风格引文Planning Research and Action Institute. An Evaluation of Ravine Reclamation Programmes in Uttar Pradesh, 1952-1968. Uttar Pradesh: Planning Research and Action Institute, 1969.
MLA引文Planning Research and Action Institute. An Evaluation of Ravine Reclamation Programmes in Uttar Pradesh, 1952-1968. Planning Research and Action Institute, 1969.
警告：这些引文格式不一定是100％准确.