Massey, H. S. W. (1964). Space physics. University Press.
Lua i Stíl Chicago (17ú heag.)Massey, Harrie Stewart Wilson. Space Physics. Cambridge: University Press, 1964.
Lua MLA (8ú heag.)Massey, Harrie Stewart Wilson. Space Physics. University Press, 1964.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.