| 000 | 00403nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aBiggs, A.R., Davis, D.D. | ||
| 245 | _aFoliar response of ten tree species exposed to SO2 air pollution | ||
| 260 | _aPennsylvania | ||
| 260 | _c1981 | ||
| 300 | _a0.666666667 | ||
| 440 | _aNo. 375; Pennsylvania Agricult | ||
| 901 | _pS36276 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c123060 _d123060 |
||