Online Books by
J. R. Thoenen
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Thoenen, J. R.: Development of sand and gravel deposits (U.S. Dept. of the Interior, Bureau of Mines, 1933) (page images at HathiTrust)- Thoenen, J. R.: Earth vibrations caused by mine blasting : progress report 2 (U.S. Dept. of the Interior, Bureau of Mines, 1938), also by S. L. Windes and United States Bureau of Mines (page images at HathiTrust)
- Thoenen, J. R.: Seismic effects of quarry blasting (United States Dept. of the Interior, Bureau of Mines, 1942), also by United States Bureau of Mines and S. L. Windes (page images at HathiTrust)
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