Cita APA (7th ed.)
Laumer, K., & Williams, R. M. Envoy to New Worlds. Ace Books.
Cita Chicago (17th ed.)
Laumer, Keith, i Robert Moore Williams. Envoy to New Worlds. Nueva York, EUA: Ace Books.
Cita MLA (9th ed.)
Laumer, Keith, i Robert Moore Williams. Envoy to New Worlds. Ace Books.
Atenció: Aquestes cites poden no estar 100% correctes.