A "coisa" cinzenta

From Author Wars - https://authorwars.com/books/a-coisa-cinzenta-2711496.html

Overview:

Title: A "coisa" cinzenta
Author: Jean Ray
Year: 1978
Type: Short Fiction

Editions/Publications:

Unknown. Bestiário fantástico (Unknown, Jean Ray, Moraes Editores, 129 pages, Trade Paperback, Collection)