APA (7th ed.) Zitazioa
Anderson, P. A Circus of Hells. Signet : New American Library.
Chicago Style (17th ed.) Zitazioa
Anderson, Poul. A Circus of Hells. Nueva York, EUA: Signet : New American Library.
MLA (9th ed.) Zitazioa
Anderson, Poul. A Circus of Hells. Signet : New American Library.
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