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18. BaIu Bumb, "Growth Potential of Existing TechnoIogy is Insufficiently Tapped,"Comment on Chapter7 in Poulation and Food in the Early Twenty−First Century: Meeeting FutureFood Demand of an Increasing Pouladon, Washington, D.C.: International Food PolicyRsearch Institute,pp.191−205.1995.
19. Lester R.Brown,Full House Norton,1994.
20. Evenson and David,op.cit.、pp.57−84、と京大堀江武教授(作物学)との対話。