00494nam a2200157Ia 4500008004100000082001600041100001700057245005700074260003100131300001300162600001600175650002600191942000700217952009500224999001700319140224s9999 xx 000 0 und d a63.001.5 K4 aSalmon, S.C. aThe principles and practice of agricultural research aLondonbLeonard Hillc1964 axi,384p. aS.C. Salmon aAgricultural research cBK 00104070aKSDbKSDd2014-02-24l0o63.001.5 K4p550r2014-02-24 00:00:00w2014-02-24yBK c96758d96758