Butler, S. T., & Messel, H. (1963). A journey through space and the atom: A course of selected lectures in astronomy, space rocketry and physics. Pergamon Press.
Chicago Style (17th ed.) CitationButler, S. T., and H. Messel. A Journey Through Space and the Atom: A Course of Selected Lectures in Astronomy, Space Rocketry and Physics. Oxford, UK: Pergamon Press, 1963.
MLA (9th ed.) CitationButler, S. T., and H. Messel. A Journey Through Space and the Atom: A Course of Selected Lectures in Astronomy, Space Rocketry and Physics. Pergamon Press, 1963.
Warning: These citations may not always be 100% accurate.