Books by Roy J. Smith:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Smith, Roy J. (Roy James), 1904-1991: Economic factors in packing and marketing lemons in cartons versus standard wooden boxes (California Agricultural Experiment Station, Giannini Foundation of Agricultural Economics, 1953), also by J. M. Tinley, Giannini Foundation of Agricultural Economics, and California Agricultural Experiment Station (page images at HathiTrust)- Smith, Roy J. (Roy James), 1904-1991: Memorandum on fruit picking machine. (University of California, Citrus Research Center and Agricultural Experiment Station, 1961), also by California. Citrus Research Center and Agricultural Experiment Station. Riverside (page images at HathiTrust)
- Smith, Roy J. (Roy James), 1904-1991: The rapid pack method of packing fruit (Division of Agricultural Sciences, University of California, 1963) (page images at HathiTrust)
Find more by Roy J. Smith at your library, or elsewhere.