 | Agricultural census data for North Dakota | (2) |
 |
 | Agricultural census data for North Dakota, 1964 / . : North Dakota State University of Agriculture and Applied Science, Agricultural Experiment Station, Dept. of Agricultural Economics ; : U.S. Dept. of Agriculture, Statistical Reporting Service, Field Operations Division, Office of Agricultural Statistician, 1966. | |
| Agricultural census data for North Dakota, 1969 / . : North Dakota State University of Agriculture and Applied Science, Agricultural Experiment Station, Dept. of Agricultural Economics ; : U.S. Dept. of Agriculture, Statistical Reporting Service, North Dakota State Statistical Office, 1972. | |
|