Corn and corn improvement /

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Ētahi atu kaituhi: Sprague, G. F. (George Frederick), 1902-
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: Madison, Wis. : American Society of Agronomy, 1977, c1976.
Putanga:[2d ed.]
Rangatū:Agronomy ; no. 18
Ngā marau:
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