Major statistical series of the US Department of Agriculture : how they are constructed and used Volume 2 Agricultural production and efficiency
US Department of Agriculture
- Washington USDA 1970
- 40 p. 26 cm
- Agriculture Handbook / USDA 2 .
- Agriculture Handbook / USDA Agricultural production and efficiency .
Eua Datos estadisticos Economia agricola
Eua Datos estadisticos Economia agricola