Water Quality Planning Bureau Library Thesaurus
The Water Quality Library Database is indexed using controlled vocabulary from the WQPB Library Thesaurus. This thesaurus was developed to create a standardized vocabulary for water concepts that may be phrased in a variety of ways in the literature, it should be used as a guide to searching keywords in the library. The terms are arranged according to lead terms, together with both broader and narrower hierarchical relationship terms and related terms. USE references are noted to satisfy desirable standardization requirements.