|
|
|
|
LEADER |
01089nam a2200301uu 4500 |
001 |
000079124 |
005 |
20100201114650.0 |
008 |
090715s1990 dk ||||| eng |
035 |
|
|
|a 9233759
|
040 |
|
|
|a Sistema de Bibliotecas de la Universidad de Costa Rica
|
041 |
0 |
|
|a eng
|
082 |
0 |
|
|a 612.607.27
|b K27d
|2 22
|
100 |
1 |
|
|a Keiding, Niels
|e Autor/a
|4 aut
|
245 |
1 |
0 |
|a Decline of semen quality during the last 50 years and possible links with environmental chemicals /
|c Niels Keiding
|
260 |
|
|
|a Copenhagen :
|b Universidad of Copenhagen. Departamento of Biostatistics.,
|c [1997].
|
300 |
|
|
|a 21 páginas :
|b ilustraciones
|
490 |
0 |
|
|a Research report / Statistical Research Unit, University of Copenhagen,
|x ISSN 0316-945
|
650 |
|
|
|a SEMEN
|
650 |
|
|
|a ESTADISTICA
|
650 |
|
|
|a SUSTANCIAS PELIGROSAS
|
650 |
|
|
|a PRODUCTOS QUIMICOS
|
650 |
|
|
|x ASPECTOS AMBIENTALES
|
650 |
|
|
|a MEDIO AMBIENTE
|
900 |
|
|
|a 2010 feb
|
912 |
|
|
|a 01-FEB-2010 - GARRIDO CORDERO, IRINA
|
917 |
|
|
|a 15-JUL-2009 - BUSTAMANTE MORA, CYNTHIA
|
949 |
|
|
|a IG -EMQ
|
916 |
|
|
|a Centro Catalográfico
|