- Publication venue
- Urbana, Ill. : University of Illinois, College of Agriculture, Agicultural Experiment Station,
- Publication date
- 01/01/1966
- Field of study
Bibliography: p. 28
- Publication venue
- Urbana, Ill. : University of Illinois, College of Agriculture, Cooperative Extension Service,
- Publication date
- 01/01/1966
- Field of study
- Publication venue
- Agricultural Experiment Station University of Missouri--Colombia
- Publication date
- 01/01/1975
- Field of study
Cover title
- Publication venue
- Urbana, Ill. : University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service
- Publication date
- 01/01/1971
- Field of study
- Publication venue
- Agricultural Economics, University of Missouri-Columbia
- Publication date
- 01/01/1975
- Field of study
Cover title.Includes bibliographical references (page 19)
- Publication venue
- Urbana, Ill. : University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service,
- Publication date
- 01/01/1976
- Field of study
Cover title.Chiefly tables
- Publication venue
- Urbana, Ill. : University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service,
- Publication date
- 01/01/1972
- Field of study
Cover title
- Publication venue
- Urbana, Ill. : University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service,
- Publication date
- 01/01/1973
- Field of study
Cover title.Prepared by D.F. Wilken and R.P. Kesler
- Publication venue
- Urbana, Ill. : University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service,
- Publication date
- 01/01/1970
- Field of study
Cover title
- Publication venue
- Urbana : University of Illinois at Urbana-Champaign, College of Agriculture, Cooperative Extension Service,
- Publication date
- 01/01/1978
- Field of study
Cover title