Cita APA (7th ed.)
Clarke, A. C. (1967). Voices from the Sky: Previews of the Coming Space Age. Pyramid Books.
Cita Chicago (17th ed.)
Clarke, Arthur C. Voices from the Sky: Previews of the Coming Space Age. Nueva York, EUA: Pyramid Books, 1967.
Cita MLA (9th ed.)
Clarke, Arthur C. Voices from the Sky: Previews of the Coming Space Age. Pyramid Books, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.