共 7 条
- [1] BELL T, 1954, KANS AGR EXP STA CIR, V308, P43
- [2] HELLER VG, 1941, OKLA AGR EXP STA TEC, V10
- [3] MURDOCK FR, 1951, P WESTERN SEC AM SOC, V2, P22
- [4] NOBLE RL, 1953, OKLA AGR EXP STA MP, V31, P51
- [5] NOBLE RL, 1954, OKLA AGR EXP STA MP, V34, P109
- [6] SNEDECOR GW, 1946, STATISTICAL METHODS