X21 traduction Espagnol
2 traduction parallèle
Henry Dickson, Ajan X21, 12, Enrico Fermi, Alfakent.
Henry Dickson, Agente X21, 12, Enrico Fermi, Alphaville
Alameda ve Green, X21. Van Houser ve Sook, X4.
Alameda y Verde, X-21, Van Houser y Sook, X-4.