Iowa farm economist
Código CCN: 039905-1
| Kraj: Não informado |
| Wydawnictwo: Iowa State College of Agriculture and Mechanic Arts |
| Imprenta:
Ames, Iowa:
Iowa State College of Agriculture and Mechanic Arts,
1935
|
| Hasło przedmiotowe: AGRICULTURA |
| Área de numeração: Vol. 1 (1935)-Vol. 12, No. 6 (1946) |