 | Nelson, Paul Edwin, 1921- 1n | (2) |
 |
 | Nelson, Paul Edwin, 1921- 1n; The farm machinery and equipment industry : its changing structure and performance / . Washington, D.C. : U.S. Dept. of Agriculture, Economic Research Service, 1970. | |
| Nelson, Paul Edwin, 1921- 1n; Price differentials for complete feeds, supplements, and shelled corn : a regression analysis / . Washington, D.C. : U.S. Dept. of Agriculture, Economic Research Service, 1971. | |
|