The standard day's work in central Illinois :
performance of implements and crews as indicated by reports from 600 farmers in a typical corn-belt area /
by H.R. Tolley and L.M. Church.
APA Citation
Tolley, H. R. (Howard Ross)., Church, L. M. (Lilian M.). (1920). The standard day's work in central Illinois: performance of implements and crews as indicated by reports from 600 farmers in a typical corn-belt area. Washington, D.C.: U.S. Dept. of Agriculture.
MLA Citation
Tolley, H. R. (Howard Ross), 1889-, and L. M. (Lilian M.) Church. The Standard Day's Work In Central Illinois: Performance of Implements And Crews As Indicated by Reports From 600 Farmers In a Typical Corn-belt Area. Washington, D.C.: U.S. Dept. of Agriculture, 1920.
Warning: These citations may not always be complete (especially for serials).