Cita APA (7a ed.)
Williamson, J. The Humanoids: Great Science Fiction Classic. Lancer Books.
Cita estilo Chicago (17a ed.)
Williamson, Jack. The Humanoids: Great Science Fiction Classic. Nueva York, EUA: Lancer Books.
Cita MLA (9a ed.)
Williamson, Jack. The Humanoids: Great Science Fiction Classic. Lancer Books.
Precaución: Estas citas no son 100% exactas.