http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Issues for 1976-<78> include bibliographies of NRC reports published the preceding year.
Vols. for 1976-<, 1978> issued with the National Academy of Sciences, National Academy of Engineering, and the Institute of Medicine.
National Research Council. Issues and current studies
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