por Jack London, Philip Francis Nowlan, H. G. Wells, Charlotte Perkins G..., Camille Flammarion, August Nemo
por Mary Shelley, Júlio Verne, H.G. Wells, Philip Francis Nowlan
por H. G. Wells, Poul Anderson, Jack Douglas, A. Hyatt Verrill, Miriam Allen deFord, Robert Sheckley, Philip Francis Nowlan, J. C. Carbel, Marcos Fherrer
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