@inproceedings{icrisat4216,
       booktitle = {Technology Options and Economic Policy for Dryland Agriculture : Potential and Challenge},
            year = {1985},
           title = {The Economics of Deep Vertisols Technology Options:  Implications for Design, Testing, and Transfer
},
           pages = {1--28},
          author = {T S Walker and J G Ryan and K G Kshirsagar and R Sarin},
             url = {http://oar.icrisat.org/4216/}
}