Media type: E-Article Title: Vistas in astronomy Contributor: Sadler, D.H. imprint: Elsevier BV, 1972 Published in: Planetary and Space Science Language: English DOI: 10.1016/0032-0633(72)90133-x ISSN: 0032-0633 Keywords: Space and Planetary Science ; Astronomy and Astrophysics Origination: Footnote: