The City of Hyper-Ur

From Author Wars - https://authorwars.com/books/the-city-of-hyper-ur-2375609.html

Overview:

Title: The City of Hyper-Ur
Author: R. M. Powers
Year: 1983
Type: Interior Art

Editions/Publications:

1983 . Spacetimewarp Paintings (1983, R. M. Powers, Nelson Doubleday / SFBC, [16] pages, other, Non-fiction)