00447nam a2200133Ia 4500008004100000082001700041100003700058245004500095260004100140300000800181942000700189952010000196999001700296140113s9999    xx            000 0 und d  a631.371   K8  a"Blair, Byron. O. & Geyer, R.E."  aCurrent concepts for agronomic education  a1968bAmerican Soc. AgronomycU.S.A.  a160  cBK  00104070aVTLbVTLd2014-01-13l0o631.371   K8pVBK1508r2014-01-13 00:00:00w2014-01-13yBK  c58187d58187