The structure and evolution of the universe : roadmap 2000-2020 United States National Aeronautics and Space Administration. text xxu (Washington, D.C.?) NASA (1997?) monographic eng 76 p. col. ill. 22 x 28 cm. general "To understand the growth of Structure and the Evolution of the component parts of the Universe." United States National Aeronautics and Space Administration. Cosmology Astronomy Research United States Galaxies Evolution Research United States Large scale structure Astronomy Research United States PUCPR 011015 20160527190305.0 252911