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A Comparison of Costs of Searching the Machine-Readable Data Bases ERIC and "Psychological Abstracts" in an Annual Subscription Rate System Against Costs Estimated for the Same Searches Done in the Lockheed DIALOG System and the System Development Corporation for ERIC, and the Lockheed DIALOG System and PASAT for "Psychological Abstracts."

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Palmer, Crescentia
Format:	Recurso educativo Open Access
Language:	en
Published:	1976
Subjects:	Comparative Analysis Computers Cost Effectiveness Costs Data Processing Databases Evaluation Methods Information Processing Information Retrieval Information Seeking Information Systems Library Automation Library Science Library Services Online Systems Relevance (Information Retrieval) Search Strategies Use Studies
Online Access:	Acceder al recurso
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