00369nam a2200145 a 450000100080000000500110000800800410001910000200006024500510008026000270013130000100015850000190016865000170018765300190020418415351995-12-18 1973 bl uuuu m 00u1 u #d1 aSOUZA, W. V. de aA procura de fertilizantes no Brasil, 1950/70. aViçosa, MG: UFVc1973 a66 p. aTese Mestrado. aFertilizante aEconomia rural