| 000 | 00539nam a22001577a 4500 | ||
|---|---|---|---|
| 005 | 20231226200516.0 | ||
| 008 | 231226b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aISI Library _bEnglish |
||
| 082 |
_a73 630.7 _bIRB390 |
||
| 110 |
_aIowa State College. _bAgricultural Experiment Station |
||
| 245 | _aSubstitution relationships, resouce requirements and income variability in the utilization of forage crops | ||
| 260 |
_aIowa: _b[s.n.], _c1952 |
||
| 490 |
_aResearch Bulletin _v390 |
||
| 650 | _aAdministrative report | ||
| 942 |
_cRP _2ddc |
||
| 999 |
_c432524 _d432524 |
||