- George O. Smith
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- George O. Smith
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- Robert Emmett McDowell
- Bryce Walton
- Charles L. Harness
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- Frederik Pohl
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- Keith Laumer
- Kris Neville
- Christopher Anvil
- Murray Leinster
- H. B. Fyfe
- Murray Leinster
- Clifford D. Simak
- Rog Phillips
- Robert W. Lowndes
- Robert Moore Williams
- Alfred Coppel
- Andre Norton
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