Expanded Universe

From Author Wars - https://authorwars.com/publications/expanded-universe-279573.html

Overview:

Title: Expanded Universe
Author: Robert A. Heinlein
Year: 1982
ISBN-10: 0441218881
Publisher: Ace Books
Price: $3.50
Pages: 582
Binding: Paperback
Type: Collection
Title Reference: Expanded Universe
Notes: • First mass market edition; 2nd printing by the number line.
• Another second printing, with date instead of a number line, has been verified here.
• It is likely, though not definite, that the two printings were at the same time, thus that date is used here as well.
• The artist is not credited; no visible signature.