Books by Richard R. Schehl:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Schehl, Richard R.: Computerized system for quantitative X-ray diffraction analysis of pyrite in coal (U.S. Dept. of the Interior, Bureau of Mines, 1973), also by Robert A. Friedel, United States. Bureau of Mines. Advancing Energy Utilization Technology Program, and Pittsburgh Energy Research Center (U.S.) (page images at HathiTrust)- Schehl, Richard R.: X-ray study of the structure of cokes carbonized at different temperatures (U.S. Bureau of Mines, 1974), also by Robert A. Friedel, Pittsburgh Energy Research Center (U.S.), and United States Bureau of Mines (page images at HathiTrust)
Find more by Richard R. Schehl at your library, or elsewhere.