Illinois tests of corn hybrids in wide use in 1949
Pendleton, J.W. and Others
Illinois tests of corn hybrids in wide use in 1949 - Urbana 1950 - 467-504 p. - Illinois Agricultural Experim .
Illinois tests of corn hybrids in wide use in 1949 - Urbana 1950 - 467-504 p. - Illinois Agricultural Experim .