Mars-Tube
C. M. Kornbluth
The Wonder Effect SS (1)
Trouble in Time
C. M. Kornbluth & Frederik Pohl
Hereafter, Inc.
Lester Del Rey
Thrilling Wonder Stories 1945-Fall v27n03
Thrilling Wonder Stories
Galaxy 1953-11 v07n02
Galaxy
If 1952-03 v01n01
If
If 1952-05 v01n02
If 1952-09 v01n04
Analog Science Fiction - Science Fact 1971-08 v87n06
Analog
Analog Science Fiction - Science Fact 1973-02 v90n06
Impulse 1966-08 v01n06
Impulse
Impulse 1966-11 v01n09
Impulse 1966-12 v01n10
Impulse 1966-10 v01n08
Impulse 1966-09 v01n07