Tohutoro APA (7th ed.)
Conklin, G. Invaders of Earth. Pocket Books.
Tohutoru Kātū Chicago (17th ed.)
Conklin, Groff. Invaders of Earth. Nueva York, EUA: Pocket Books.
Tohutoro MLA (9th ed.)
Conklin, Groff. Invaders of Earth. Pocket Books.
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