Books by Theo. L. Johnston:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Johnston, Theo. L.: Sponge iron in Japan (U.S. Dept. of the Interior, Bureau of Mines, 1948), also by United States Bureau of Mines (page images at HathiTrust)
Find more by Theo. L. Johnston at your library, or elsewhere.