Crop production /
Hughes, Harold
Crop production / Harold Hughes; Darrel Metcalfe - 3 ed. - Estados Unidos : Mcmillan publishing , 1957 . - 627 p.
--AGRICULTURA
631.5 / H844
Crop production / Harold Hughes; Darrel Metcalfe - 3 ed. - Estados Unidos : Mcmillan publishing , 1957 . - 627 p.
--AGRICULTURA
631.5 / H844