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| 245 | 1 | 0 | _aInternational centre for manatee research: report of a Workshop neid 7-13 february 1974 Georgetown. Guyana South America |
| 650 | 1 | 4 |
_aMamíferos acuáticos _993274 |
| 650 | 1 | 4 |
_aEspecies en extinción _94653 |
| 650 | 1 | 4 |
_aContaminación del agua _993620 |
| 651 | 4 |
_pGuyana _992749 |
|
| 653 |
_gTrichechus _eTrichechus manatus |
||
| 041 | 0 | _aInglés | |
| 700 | 1 |
_aInternational Development Research _993621 |
|
| 100 | 1 |
_aNational Academy of Sciences _993622 |
|
| 110 | 1 |
_aNational Science Research Council _993623 |
|
| 942 | _cARTICULO | ||
| 773 | 1 |
_tNational Science Research Council _3216 _q1-33 _d1980? |
|
| 999 |
_c9656 _d9656 |
||