- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/12/1940
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/12/1941
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/12/1941
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/03/1942
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/01/1988
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/01/1970
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/01/2008
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/01/1978
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/01/2014
- Field of study
- Publication venue
- Iowa State University Digital Repository
- Publication date
- 01/01/1956
- Field of study