| 000 | 00538nam a2200181 a 4500 | ||
|---|---|---|---|
| 008 | 121119s1974 xx || ||||||| |d | ||
| 020 | _a9231010824 | ||
| 100 | 1 |
_aMitchell, D. S. _4edt |
|
| 245 | 0 | 0 | _aAquatic vegetation and its use and control |
| 260 | _c1974 | ||
| 260 | _bUnited Nations Educational, Scientific and Cultural Organization | ||
| 300 | _a135 p. illus. 24 cm | ||
| 650 | 7 |
_aAQUACULTURE _2unbist |
|
| 650 | 7 |
_aAQUATIC ECOLOGY _2unbist |
|
| 650 | 7 |
_aECONOMIC ASPECTS _2unbist |
|
| 650 | 7 |
_aWEED CONTROL _2unbist |
|
| 942 | _cBK | ||
| 999 |
_c573 _d573 |
||