Matching Items (3)
Filtering by
- All Subjects: Grand Canyon (Ariz.)
- All Subjects: Agriculture
- Creators: Gregory, Michael
- Creators: Matthes, F.
- Creators: McOmie, A. M.
ContributorsMcOmie, A. M. (Author) / Jacobs, C. C. (Author) / Bartlett, O. C. (Author) / Arizona Board of Control (Publisher)
Created1915
DescriptionBlack and white pamphlet includes photographs.
ContributorsMatthes, F. (Author) / Evans, R. T. (Author) / The Military engineer (Publisher)
Created1926-05
DescriptionGeological Survey of the Grand Canyon in published journal. Vol. XVIII, No. 99.
ContributorsPalacio, Phyllis (Host) / Grey, Michael R. (Interviewee) / Gregory, Michael (Interviewee) / Public Broadcasting Service (Broadcaster)
Created1987-05-20
DescriptionPesticides II Package, Ivan Shields and Michael Gregory In-Studio Interview (Cavanary/Solomon). Episode on neighborhood contamination by agricultural pesticides, and pesticide regulations.