http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Results of the first U.S. manned orbital space flight, February 20, 1962
Results of the first United States manned orbital space flight, February 20, 1962
Results of the first US manned orbital space flight, February 20, 1962
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Results of the first U. S. manned orbital space flight, February 20, 1962