| 000 | 00351nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 100 | _avan Wyk, S.P. | ||
| 245 | _aUnit costs on maize farms in the North-Western, O.F.S. | ||
| 260 |
_aPretoria _c1957 |
||
| 300 | _a22 p. | ||
| 440 | _aNo. 347; Union of South Afric | ||
| 901 | _a53065 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c9356 _d9356 |
||