00318nam a2200097Ia 4500008004100000082003200041100002400073245007300097260002700170650002300197220204s9999    xx            000 0 und d  a338.4301:631.17(540)bHAN;1  aHANUMANTHA RAO, C H 0aTechnological change and distribution of gains in Indian agriculture  aDelhibMacmillanc1975  aFarm mechanization