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- AudiolibroThe Plague of SoundAlex Raymond
- AudiolibroCitadels Under AttackAlex Raymond
- AudiolibroThe Witch Queen of MongoAlex Raymond
- AudiolibroThe Time Trap of Ming XIIIAlex Raymond
- AudiolibroForces from the FederationAlex Raymond
- AudiolibroThe War of the CybernautsAlex Raymond
- AudiolibroCrisis on Citadel IIAlex Raymond
- AudiolibroCitadels on EarthAlex Raymond
- AudiolibroThe Space CircusAlex Raymond
- AudiolibroSerie: Flash GordonAlex Raymond
- AudiolibroWar of the CitadelsAlex Raymond
- AudiolibroMassacre in the 22nd CenturyAlex Raymond