000 | 00350nam a2200121Ia 4500 | ||
---|---|---|---|
008 | 130225s9999 xx 000 0 und d | ||
245 | _aPeriodicity of the blue-green algae and their effect on the efficiency of manure | ||
260 |
_aWashington _c1972 |
||
300 | _a1-8 p. | ||
440 | _aUnited Sates Department of Ag | ||
901 | _a22947 | ||
942 |
_cB _2udc |
||
999 |
_c4199 _d4199 |