http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Episode 27 - Project Mercury: In an attempt to put the first man into orbit, NASA devised Project Mercury, and in 1959 the first group of astronauts was introduced to the world.
Title from resource description page (viewed May 10, 2019).
National Aeronautics and Space Administration.