| 000 | 00966nab a22003857a 4500 | ||
|---|---|---|---|
| 001 | G51072 | ||
| 003 | MX-TxCIM | ||
| 008 | 121211b |||p||p||||||| |z||| | | ||
| 022 | 0 | _a0002-1482 | |
| 040 | _aMX-TxCIM | ||
| 041 | 0 | _aEn | |
| 043 | _aUS | ||
| 072 | 0 | _aB50 | |
| 072 | 0 | _aF30 F01 | |
| 082 | 0 | 4 | _a89-127129 |
| 100 | 1 | _aDalrymple, D.G. | |
| 245 | 0 | 0 | _aChanges in wheat varieties and yields in the United States, 1919-1984 |
| 260 | _c1988 | ||
| 340 | _aPrinted | ||
| 500 | _areferences. Literature review | ||
| 546 | _aEnglish | ||
| 595 | _aAC | ||
| 650 | 1 | 7 |
_aCrop yield _gAGROVOC _2 _91066 |
| 650 | 1 | 0 | _aFarm area |
| 650 | 1 | 0 | _aHistory |
| 650 | 1 | 0 | _aProduction |
| 650 | 1 | 0 | _aStatistics |
| 650 | 1 | 0 | _aTechnical progress |
| 650 | 1 | 0 | _aUSA |
| 650 | 1 | 7 |
_aVarieties _gAGROVOC _2 _91303 |
| 650 | 1 | 7 |
_aTriticum _gAGROVOC _2 _91295 |
| 650 | 1 | 0 |
_91313 _aYields _gAGROVOC |
| 773 | 0 |
_tAgricultural History _n89-127129 _gv. 62, no. 4, p. 20-36 |
|
| 942 | _cJA | ||
| 999 |
_c15762 _d15762 |
||