000 | 00400nam a2200145Ia 4500 | ||
---|---|---|---|
008 | 130223s9999 xx 000 0 und d | ||
080 | _a061.6:63(73) | ||
245 | _aProfessional workers in state agricultural experiment stations and other coopera | ||
260 | _aWashington | ||
260 | _c1970 | ||
300 | _a289 p. | ||
440 | _aNo. 305; United States Departm | ||
901 | _pS17308 | ||
942 |
_cB _2udc |
||
999 |
_c130784 _d130784 |