000 | 00656nam a2200217Ia 4500 | ||
---|---|---|---|
008 | 160601s9999 xx 000 0 und d | ||
100 |
_aHaroldsen, Edwin O _927130 |
||
100 |
_aHeady, Earl O _92540 |
||
100 |
_aMayer, Leo V _927131 |
||
100 |
_aTweeten, Luther G _927132 |
||
245 | _aRoots of the farm problem | ||
245 | _bchanging technology, changing capital use, changing labour needs | ||
260 | _aAmes | ||
260 | _bThe Iowa state university press | ||
260 | _c1965 | ||
300 | _aviii, 224p.; 22cm. | ||
650 |
_aCommodity supply _927133 |
||
650 |
_aFarm problem _927134 |
||
650 |
_aFarming _93374 |
||
650 |
_aHired farm labour _927135 |
||
999 |
_c8998 _d8998 |