| 000 | 00421 a2200145 4500 | ||
|---|---|---|---|
| 245 | 1 | _aDesert grassland : A history of vegetational change and an analysis of causes | |
| 260 |
_aTucson _c1958 |
||
| 650 | _aDesert Grassland | ||
| 650 | _aVegetational Change | ||
| 100 | 1 |
_aHumphrey, R.R. _d |
|
| 300 | _a62 p. | ||
| 440 |
_aNo. 299 _vArizona Agricultural Experiment Station Bulletin |
||
| 942 |
_2udc _cB |
||
| 901 | _a59084 | ||
| 999 |
_c53699 _d53699 |
||