| 000 | 00339 a2200133 4500 | ||
|---|---|---|---|
| 245 | 1 | _aOperating field dusters in Arizona | |
| 260 |
_aTucson _c1958 |
||
| 650 | _aField Dusters | ||
| 100 | 1 |
_aWelchert, W.T. _d |
|
| 300 | _a11 p. | ||
| 440 |
_aNo. 261 _vArizona Agricultural Experiment Station Circular |
||
| 942 |
_2udc _cB |
||
| 901 | _a57179 | ||
| 999 |
_c53754 _d53754 |
||