Singh, D. V. (1998). Impact evaluation study, Integrated Watershed Development (Hills) Project, Markanda Watershed, Himachal Pradesh. Agro-Economic Research Centre, Himachal Pradesh University.
Chicago-referens (17:e uppl.)Singh, D. V. Impact Evaluation Study, Integrated Watershed Development (Hills) Project, Markanda Watershed, Himachal Pradesh. Shimla, India: Agro-Economic Research Centre, Himachal Pradesh University, 1998.
MLA-referens (8:e uppl.)Singh, D. V. Impact Evaluation Study, Integrated Watershed Development (Hills) Project, Markanda Watershed, Himachal Pradesh. Agro-Economic Research Centre, Himachal Pradesh University, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.