The Online Books Page

Books by Seymour A. Bortz:

Books in the extended shelves:

• Bortz, Seymour A., 1922-: Accomplishments in waste utilization : a summary of the Seventh Mineral Waste Utilization Symposium (U.S. Dept. of the Interior, Bureau of Mines, 1982), also by R. S. DeCesare and Ill.) Mineral Waste Utilization Symposium (7th : 1980 : Chicago (page images at HathiTrust)
• Bortz, Seymour A., 1922-: Materials recycling : an overview of the Sixth Mineral Waste Utilization Symposium (U.S. Dept. of the Interior, Bureau of Mines, 1980), also by Kenneth B. Higbie and : 1978 : Chicago) Mineral Waste Utilization Symposium (6th (page images at HathiTrust)
• Bortz, Seymour A., 1922-: Materials recycling : an overview of the Sixth Mineral Waste Utilization Symposium (U.S. Dept. of the Interior, Bureau of Mines, 1980), also by Kenneth B. Higbie and Chicago Mineral Waste Utilization Symposium (page images at HathiTrust)

Find more by Seymour A. Bortz at your library, or elsewhere.