00247nam a22000977a 4500003000400000008004100004082002100045100001700066245003200083260003400115OSt230624b        |||||||| |||| 00| 0 eng d  a574.0914bAQ1220  aPierce, W.H.  aAdvances in Corn Production  aKalyanibS.R., Technierc1972