000 | 00321nam a2200121Ia 4500 | ||
---|---|---|---|
008 | 170324s9999 xx 000 0 und d | ||
082 | _a574.526 | ||
100 | _a"Rigler, Frank H." | ||
245 | 0 | _aManual on methods for the assessment of secondary productivity in fresh waters | |
260 | _c1900 | ||
365 | _b0.00 | ||
942 | _cBK | ||
999 |
_c8647 _d8647 |