| 000 | 00399nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aMckee, G.W. | ||
| 245 | _aEffects of shading and plant competition on seeding growth and nodulation in bir | ||
| 260 | _aPennsylvania | ||
| 260 | _c1962 | ||
| 300 | _a36 p. | ||
| 440 | _aNo. 689; Pennsylvania Agricult | ||
| 901 | _pS8590 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c121254 _d121254 |
||