00376nam a2200097Ia 4500008004100000082003300041100002100074245014000095260003500235300000800270140113s9999 xx 000 0 und d a"54:63(7/8)""1840/80"" L5" a"Rossiter, M.W." aThe emergence of agricultural science. :Justus Liebig and the Americans 1840-1880 (Yale Studies in the history of science and medicine) a1975bYale Univ. PresscLondon a275