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| 100 | 1 | _aCassell, Kay Ann | |
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_aReference and information services in the 21st century : _b: an introduction / _cKay Ann Cassell and Uma Hiremath. |
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_aNew York : _bNeal-Schuman, _c2006. |
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| 300 | _axiv, 378 p. | ||
| 650 | 0 | _aServicios de consulta (Bibliotecas) | |
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_aLibros de consulta _vBibliografía |
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_aFuentes de consulta electrónicas _vDirectorios |
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_aHiremath, Uma, _ecoaut. |
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_3Tabla de contenido _uhttp://www.loc.gov/catdir/toc/ecip0612/2006012644.html |
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