Tohutoro APA (7th ed.)

Various; Bates, H. Astounding Stories, March, 1931.

Tohutoru Kātū Chicago (17th ed.)

Various; Bates, Harry. Astounding Stories, March, 1931.

Tohutoro MLA (9th ed.)

Various; Bates, Harry. Astounding Stories, March, 1931.

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