http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Laws relating to the National Park Service
Title from PDF title page (viewed Sept. 24, 2012).
GPO Cataloging Record Distribution Program (CRDP).
Supplements the monograph: United States. Laws relating to the National Park Service, the national parks and monuments, [1933]
Laws relating to the National Park Service, the national parks and monuments
[Washington, D.C.] : U S. Dept. of the Interior, National Park Service, [1933]
Laws relating to the National Park Service. Supplement