Petra

From Author Wars - https://authorwars.com/books/petra-2104547.html

Overview:

Title: Petra
Author: Greg Bear
Year: 1990
Type: Short Fiction

Editions/Publications:

Unknown. Peililasit (Unknown, Greg Bear, Kustannus Oy Jalava, ISBN-10: 9518954240, 238 pages, Trade Paperback, Anthology)