Murphy, D. R., & Murphy, D. R. (1962). What farmers read and like: A record of experiments with readership on Wallaces farmer and Wisconsin agriculturist, 1938-1961. Ames: Iowa State University Press.
Citación estilo ChicagoMurphy, Donald R., y Donald R. Murphy. What Farmers Read and Like: A Record of Experiments With Readership On Wallaces Farmer and Wisconsin Agriculturist, 1938-1961. Ames: Iowa State University Press, 1962.
Cita MLAMurphy, Donald R., y Donald R. Murphy. What Farmers Read and Like: A Record of Experiments With Readership On Wallaces Farmer and Wisconsin Agriculturist, 1938-1961. Ames: Iowa State University Press, 1962.
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