00397nam a22001457a 4500008004100000040005500041080001600096100002700112245002100139260003700160300001000197650001500207942001200222999001700234230410b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a338.922bL2  aJohnson, Stanley96618  aGreen revolution  aLondon: bHamish Hamilton,c1972  a218p.  aRevolution  2udccBK  c19972d19972