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| LEADER |
00690nam a22001811a 4500 |
| 001 |
UNA01000036757 |
| 005 |
20140408104130.0 |
| 008 |
080728s1978 r 000 0 spa d |
| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 082 |
0 |
4 |
|a 631.847
|b I-85-i
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| 245 |
0 |
0 |
|a Isotopes in Biological Dinitrogen Fixation :
|b proceedings of an Advisory Group Meeting /
|c Organized by the Joint FA0 ; IAEA. División of Atomic Energy in Food and Agriculture.
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| 260 |
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|a Viena :
|b La Organización ,
|c 1978.
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| 300 |
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|a 316 p. ;
|c ill.
|c 35 cm.
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| 490 |
0 |
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|a Panel Proceedings Series
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| 650 |
0 |
4 |
|a NITRÓGENO
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| 650 |
0 |
4 |
|a ISOTOPOS
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| 650 |
0 |
4 |
|a AGRICULTURA
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| 700 |
1 |
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|a Advisory Group Meeting
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