E
E. R. Swanson
1921
6 works on record
Works
Economic effects of controls on nitrogen fertilizer
1978
Highest return farming systems for Drummer-Flanagan soils
1958
Variability of yields and income from major Illinois crops 1927-1953
1957
Omega in the Atlantic (1963-1965)
Swanson family history
Swanson family history
1993
Resource productivity in Iowa farming
Resource productivity in Iowa farming