Iowa farmers are getting along with less and less hired labor-through constantly increasing mechanization, newer and more efficient farming methods, and because of strong competition of urban employment opportunites for potential farm workers.
Jehlik, Paul J.
"Iowa Farmers Using Less Hired Help,"
Iowa Farm Science: Vol. 6
, Article 4.
Available at: https://lib.dr.iastate.edu/farmscience/vol6/iss12/4