Books by P. E. Johnston:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Johnston, P. E. (Paul Evans), 1895-: How valuable are the soils of central Illinois : a ten-year study of selected soils, systems of farming, and relative earnings (University of Illinois Agricultural Experiment Station, 1952), also by W. N. Thompson (page images at HathiTrust)- Johnston, P. E. (Paul Evans), 1895-: A study of the cost of horse and tractor power on Illinois farms (University of Illinois Agricultural Experiment Station, 1933), also by J. E. Wills (page images at HathiTrust)
- Johnston, P. E. (Paul Evans), 1895-: A survey of Illinois farm labor in 1946 (University of Illinois Agricultural Experiment Station, 1948), also by A. J. Cross (page images at HathiTrust)
- Johnston, P. E. (Paul Evans), 1895-: Twelve years of farm accounts in Illinois (University of Illinois Agricultural Experiment Station, 1942), also by H. C. M. Case (page images at HathiTrust)
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