Cita APA (7a ed.)
Russell, E. F. The Space Willies. Ace Books.
Cita estilo Chicago (17a ed.)
Russell, Eric Frank. The Space Willies. Nueva York, EUA: Ace Books.
Cita MLA (9a ed.)
Russell, Eric Frank. The Space Willies. Ace Books.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.