00425nam a2200133Ia 4500008004100000082002700041100002000068245006300088250001200151260002700163300001000190600001900200650007200219140224s9999    xx            000 0 und d  a631.1+636.084:519.2 L7  aDillon, John L.  aThe Analysis of response in crop and livestock production.  a2nd ed.  aOxfordbPergamonc1977  a213p.  aJohn L. Dillon  aFarm management-mathematical models,Agriculture-statistical methods