| 000 | 00403nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aBuys, G.S., Potgister, D.J.J. | ||
| 245 | _aNitrogen balance study of the protein level required in laying rations | ||
| 260 | _aPretoria | ||
| 260 | _c1962 | ||
| 300 | _a32 p. | ||
| 440 | _aNo. 8; South Africa Department | ||
| 901 | _pS6020 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c128391 _d128391 |
||