Wilcox, Walter W.
Economics of American agriculture
Prentice-Hall, 1951
 Buku Teks
Gates, Paul W.
The Farmer's age: agriculture 1815-1860
Holt, Rinehart and Winston, 1962
 Buku Teks
Schultz, Theodore W.
The economic organization of agriculture
McGraw-Hill, 1953
 Buku Teks
Cochrane, Willard W.
Farm prices myth and reality
University of Minnesota Press, 1964
 Buku Teks
Readings on agricultural policy
edited by O.B. Jesness
Blakiston , 1950
 Buku Teks