Books by Robert D. Gray:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Gray, Robert D. (Robert Davis), 1909-: Fantasies and facts in corporations. (Pasadena, Calif. : [publisher not identified], [1955?], 1955) (page images at HathiTrust)- Gray, Robert D. (Robert Davis), 1909-: Supervision of scientific and engineering personnel (Industrial Relations Section, California Institute of Technology, 1956), also by John T. Lloyd (page images at HathiTrust)
- Gray, Robert D. (Robert Davis), 1909-: Survey of select personnel practices in Los Angeles County as of April 1, 1949 (Pasadena, 1949), also by California Institute of Technology. Industrial Relations Section (page images at HathiTrust)
- Gray, Robert D. (Robert Davis), 1909-: Trends in foundry production in the Philadelphia area (University of Pennsylvania press, 1929), also by Anne Bezanson and Federal Reserve Bank of Philadelphia (page images at HathiTrust)
Find more by Robert D. Gray at your library, or elsewhere.