Economics of cow-dung gas palnts : a report
Indian Council of Agricultural Research
Economics of cow-dung gas palnts : a report Indian Council of Agricultural Research - New Delhi Indian Council of Agricultural Research 1976 - 64 p.; 22cm.
333.793 8 IN23E
Economics of cow-dung gas palnts : a report Indian Council of Agricultural Research - New Delhi Indian Council of Agricultural Research 1976 - 64 p.; 22cm.
333.793 8 IN23E