Astounding Stories of Super-Science, June, 1930 [electronic resource] /
Various
- Project Gutenberg, 2009
- Project Gutenberg 29848 .
Out of the Dreadful Depths / Charles Willard Diffin -- Murder Madness (Part 2 of 4) / Murray Leinster -- The Cavern World / James P. Olsen -- Brigands of the Moon (Part 4 of 4) / Ray Cummings -- Giants of the Ray / Tom Curry -- The Moon Master / Charles Willard Diffin
Public domain in the USA.
Electronic text
Science fiction -- Periodicals Science fiction, American -- Periodicals