Impasse dans le temps

From Author Wars - https://authorwars.com/books/impasse-dans-le-temps-1488611.html

Overview:

Title: Impasse dans le temps
Author: Larry Niven
Year: 1966
Type: Short Fiction

Editions/Publications:

Unknown. Galaxie (2ème série), #31 (Unknown, Larry Niven, OPTA, F2.50, 164 pages, digest, MAGAZINE)