Unknown
Publishers:
- Street & Smith Publications, Inc.; New York
- Unknown
- 1939: Mar; Apr; May; Jun; Jul; Aug; Sep; Oct; Nov; Dec
- 1940: Jan; Feb; Mar; Apr; May; Jun; Jul; Aug; Sep; Oct; Nov; Dec
- 1941: Feb; Apr; Jun; Aug
- Unknown Worlds
- 1941: Oct; Dec
- 1942: Feb; Apr; Jun; Aug; Oct; Dec
- 1943: Feb; Apr; Jun; Aug; Oct
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Copyright © 2002 by Stephen T. Miller & William G. Contento