Planning Research and Action Institute. (1969). An evaluation of ravine reclamation programmes in Uttar Pradesh, 1952-1968. Planning Research and Action Institute.
Chicago-referens (17:e uppl.)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-referens (9:e uppl.)Planning Research and Action Institute. An Evaluation of Ravine Reclamation Programmes in Uttar Pradesh, 1952-1968. Planning Research and Action Institute, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.