Agronomy Journal. v.69, 1977
Patterson, F.L., ed.
Agronomy Journal. v.69, 1977 edited by F.L.Patterson - Wisconsin American Society of Agronomy 1977 - v.69, 1076 p.; 28cm.
00021962
Agronomy Journal. v.69, 1977 edited by F.L.Patterson - Wisconsin American Society of Agronomy 1977 - v.69, 1076 p.; 28cm.
00021962