Books by Douglas F. Stevens:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Stevens, Douglas F.: Agstone used in Illinois in 1944: Preliminary annual report (Urbana, 1945), also by Walter Henry Voskuil (page images at HathiTrust)- Stevens, Douglas F.: Agstone used in Illinois in 1945 (Urbana, 1946), also by Walter Henry Voskuil (page images at HathiTrust)
- Stevens, Douglas F.: Agstone used in Illinois in 1946 (Urbana, 1947), also by Walter Henry Voskuil and Ethel M. King (page images at HathiTrust)
- Stevens, Douglas F.: Directory of Illinois clay and clay products producers, January 1, 1942. (Urbana, 1942) (page images at HathiTrust)
- Stevens, Douglas F.: Illinois mineral industry in 1941 (State Geological Survey, 1943), also by Walter Henry Voskuil and G. N. Oliver (page images at HathiTrust)
- Stevens, Douglas F.: Illinois mineral industry in 1942 (State Geological Survey, 1944), also by Walter Henry Voskuil (page images at HathiTrust)
- Stevens, Douglas F.: Illinois mineral industry in 1943 (State Geological Survey, 1944), also by Walter Henry Voskuil (page images at HathiTrust)
- Stevens, Douglas F.: Illinois mineral industry in 1944 (State Geological Survey, 1945), also by Walter Henry Voskuil (page images at HathiTrust)
- Stevens, Douglas F.: Illinois mineral industry in 1945 (State Geological Survey, 1946), also by Walter Henry Voskuil and Nina T. Hamrick (page images at HathiTrust)
Find more by Douglas F. Stevens at your library, or elsewhere.