| 000 | 00399nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 080 | _a331.11(593) | ||
| 100 | _aRon, Z., Schutjer, W.A. | ||
| 245 | _aEconometric analysis of fertility schoolin and time allocation among thia agricu | ||
| 260 | _aUniversity Park | ||
| 440 | _aNo. 840; Pennsylvania College | ||
| 901 | _pS37740 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c120399 _d120399 |
||