1. All India Report on Number and Area of Operational Holdings;Agriculture Census,2011
2. Fortunately there are substitutes for water otherwise our hydro-political futures would be impossible;Allan,1993
3. Virtual water trade: a quantification of virtual water flows between nations in relation to international trade of livestock and livestock products;Chapagain,2003
4. Water footprints of nations, Volume 1: Main report;Chapagain,2004
5. Water saving through international trade of agricultural products;Chapagain;Hydrol. Earth Syst. Sci.,2006