Dated 1984 on the title page. Month of publication derived from the code "0684" printed at the bottom of the back flap of the dustjacket.
The copyright page contains the complete Library of Congress Cataloging in Publication Data including the ISBN (0-385-19134-0) and the LCCN: 83-20785. There is no record of this control number on the LOC website, probably because the Universe series was recorded as a periodical (serial) publication and was given one control number.
Gutter Code: O18 from page 181 indicates a print date of early May 1984.
