Provides guidelines for thesaurus planning, development, and maintenance. Topics covered include the determination of user needs; the organization of raw vocabulary into clusters; the use of compound terms vs. precoordination; the use of notation; referencing; and computer maintenance of a thesaurus. (nine references) (CLB)

Describes the organization of the descriptors used in the ERIC database to indicate age, educational, and student levels, and suggests appropriate search strategies for the retrieval of information on specific age groups. (CLB)