Planet Stories - Spring 1940
de John Murray Reynolds, Nelson S. Bond, Ray Cummings, Ed Earl Repp, Carl Selwyn, Ross Rocklynne, Alexander M. Phillips, Ray King, John Gunnison
de John Murray Reynolds, Nelson S. Bond, Ray Cummings, Ed Earl Repp, Carl Selwyn, Ross Rocklynne, Alexander M. Phillips, Ray King, John Gunnison
Adventure House · ISBN 9781597983075
