Source Text identifying the source from which the full-text report may be obtained. GPO Subject Category Text Text denoting the subject category or categories assigned by GPO to the report. Subject categories describe the technical content of the report. GPO Subject Category Numbers Alpha-numeric code, specifically punctuated and assigned by GPO, identifying the subjects contained in the report. GPO Subject Category Numbers Packed Alpha-numeric code, without punctuation and searchable by WAIS, identifying the subjects contained in the report.
Subject categories describe the technical content of the report.
Subject classification derives from the publication International Energy Subject Categories and Scope . Six-digit code identifying the subjects contained in the report. The single primary alpha-numeric identification number assigned to a report. Date of Publication Date the report was published. Language Text Indicates the language in which the report was published.