An alien uses a giant spaceman to absorb disaster-energy to make himself invulnerable, but Superman separates the alien from his power source.
The price of "Justice League of America #20" at Current Comics Monterey is USD $60.00.
The publisher of "Justice League of America #20" is DC Entertainment.
The genres of "Justice League of America #20" are Advocacy, Non-Fiction, Science, and Superheroes.
"Justice League of America #20" falls under the category of Back Issues.
The artists of "Justice League of America #20" are Sheldon Moldoff, and Mike Sekowsky.
The writers of "Justice League of America #20" are Jack Schiff, and Gardner Fox.
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