Letter (Astounding Stories, May 1935): Mr. van Kampen Says:

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Overview:

Title: Letter (Astounding Stories, May 1935): Mr. van Kampen Says:
Author: John W. Campbell, Jr.
Year: 1935
Type: Essays
Series: Letters: John W. Campbell, Jr.

Variant Titles:

1935. Letter (Astounding Stories, May 1935): Mr. van Kampen Says: