Yazar
joan d peterson
2 cilt bulundu.
Cilt sonuçları
Southern forages
Donald M. Ball, Joan D. Peterson, Carl S Hoveland, Garry D Lacefield · Potash & Phosphate Institute
322 sayfa · 2002
Forage plants / Feeds / Animal feeding / Pastures / Management
Wheat, politicians and the great depression
Clive B Davidson, Merril W. Menzies, Joan D. Peterson, Paul E. Nickel · Natural Resource Institute, University of Manitoba
75 sayfa · 1976
Wheat trade / Depressions / Politics and government