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PDF pending restorationHalpin, Peter – 1978
This thesaurus presents the specialized terminology and air pollution indexing terms used for the storage of, and search for, information in the Air Pollution Technical Information Center (APTIC) data base file, and illustrates the rules formulated for their use. The meanings of the terms are implied rather than defined, being implicit in the…
Descriptors: Air Pollution, Classification, Databases, Indexes
PDF pending restorationNational Technical Information Service (DOC), Springfield, VA. – 1977
Integrated in this micro-thesaurus of indexing terms are keywords from the Department of Defense thesaurus, the Energy Research and Development Administration thesaurus, the National Aeronautics and Space Administration thesaurus, and the thesaurus used by the National Technical Information Service (NTIS). Included are controlled free language…
Descriptors: Air Pollution, Chemistry, Environment, Indexes
