- Publication venue
- Washington, D.C. :U.S. Dept. of Agriculture,1937.
- Publication date
- 01/01/1937
- Field of study
No full textno.42
- Publication venue
- Washington, D.C. :U.S. Dept. of Agriculture,1933.
- Publication date
- 01/01/1933
- Field of study
No full textno.26
- Publication venue
- Washington, D.C. :U.S. Dept. of Agriculture,1935.
- Publication date
- 01/01/1935
- Field of study
No full textno.35
- Publication venue
- Washington, D.C. :U.S. Dept. of Agriculture,1955.
- Publication date
- Field of study
No full textno.3