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20120723141806.0 |
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120723s2003 r 000 0 spa d |
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|a 9158689354
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| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 040 |
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|a SIDUNA
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| 082 |
0 |
4 |
|a 363.72
|b C645c
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| 245 |
1 |
0 |
|a Closing the loop :
|b ecological sanitation for food security /
|c Steven A. Esrey.[et.al]; editor Ron Sawyer.
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| 260 |
|
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|a México :
|b SIDA, UNDP, UNICEF, Water and Sanitation Program, Thrasher Research Fund, PAHO,
|c 2003.
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| 300 |
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|a 90 p. ;
|c 23 cm.
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| 490 |
0 |
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|a Publications on water Resources.
|v 18
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| 650 |
0 |
4 |
|a SEGURIDAD ALIMENTARIA
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| 650 |
0 |
4 |
|a SANEAMIENTO AMBIENTAL
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| 650 |
0 |
4 |
|a SALUD
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| 650 |
0 |
4 |
|a EXCRECIÓN
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| 650 |
0 |
4 |
|a CONTAMINACION
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| 650 |
0 |
4 |
|a LETRINAS
|