Astronomy, structure of the universe by Roy, A. E. (Archie E.), 1924- Publication date 1977 Topics Astronomy Publisher Bristol [Eng.] : A. Hilger Collection trent_university; internetarchivebooks; ...

Introductory astronomy and astrophysics by Smith, Elske v. P. (Elske van Panhuys), 1929- Publication date 1973 Topics Astrophysics, Astronomy, Astrophysique -- Guides, manuels, etc, Astronomie -- ...