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970410s1978 enk ||||| eng |
| 020 |
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|a 0860890163
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| 035 |
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|a 407433
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| 040 |
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|a Sistema de Bibliotecas de la Universidad de Costa Rica
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|a eng
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| 082 |
0 |
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|a 363.960.715
|b W926W
|2 00
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| 245 |
1 |
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|a Working with youth :
|b some out-of-school approaches to population, family life and sex education
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| 260 |
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|a London, Sydney :
|b International Planned Parenthood Federation,
|c 1978,c1977.
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| 300 |
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|a 73 páginas :
|b ilustraciones, retratos
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| 650 |
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|a EDUCACION EN MATERIA DE POBLACION
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| 650 |
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|a EDUCACION EN EL HOGAR
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| 650 |
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|a EDUCACION SEXUAL PARA LA JUVENTUD
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| 916 |
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|a Centro Catalográfico
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