APA
K.P.R. Vittal, G.R. Sankar Maruthi H.P. Singh J.S. Samra, . (2002). Sustainability of practices of dryland agriculture : Methodology and assessment. Hyderbad: Central Research Institute for dryland Agriculture.
Chicago
K.P.R. Vittal, G.R. Sankar Maruthi H.P. Singh J.S. Samra, . 2002. Sustainability of practices of dryland agriculture : Methodology and assessment. Hyderbad: Central Research Institute for dryland Agriculture.
Harvard
K.P.R. Vittal, G.R. Sankar Maruthi H.P. Singh J.S. Samra, . (2002). Sustainability of practices of dryland agriculture : Methodology and assessment. Hyderbad: Central Research Institute for dryland Agriculture.
MLA
K.P.R. Vittal, G.R. Sankar Maruthi H.P. Singh J.S. Samra, . Sustainability of practices of dryland agriculture : Methodology and assessment. Hyderbad: Central Research Institute for dryland Agriculture. 2002.