Mallan, L., & Power, T. S. (1956). Men, rockets and space. Cassell.
Lua i Stíl Chicago (17ú heag.)Mallan, Lloyd, agus Thomas S. Power. Men, Rockets and Space. London: Cassell, 1956.
Lua MLA (8ú heag.)Mallan, Lloyd, agus Thomas S. Power. Men, Rockets and Space. Cassell, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.