Крокодил, 1942 , № 48
Krokodil Magazine
Star Trek 08
James Blish
Bantam Novalizations (8)
Наука и жизнь #07 1970
Nauka i Zhizn Magazine
Крокодил, 1943 , № 22-23
Reiffen's choice
S. C. Butler
Stoneways (1)