Amazing Stories/The Retreat to Mars
- "The Retreat to Mars", in Amazing Stories, Vol. 2, No. 5 (August 1927)
- "The Return of the Martians", in Amazing Stories, Vol. 3, No. 1 (April 1928)
This work is in the public domain in the United States because it was published in 1928, before the cutoff of January 1, 1930.
The longest-living author of this work died in 1955, so this work is in the public domain in countries and areas where the copyright term is the author's life plus 69 years or less. This work may be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.
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