Year of publication stated on the title page. Month of publication from the code "1185" printed on the back flap of the dustjacket. This is corroborated by Locus1. Clute/Nicholls has the year as 1986
Title page gives the subtitle as Eight Science Fiction Stories, while the cover and spine subtitle it 8 Science Fiction Stories.
The copyright page contains the complete Library of Congress Cataloging in Publication Data including the year of publication, the ISBN, and the LCCN.
Gutter code "P041" on page 176 indicates a printing in October 1985.
"Jacket by Laurie Dolphin" printed on the back flap of the dustjacket.
Bishop's introduction is dated "January 11-13, 1985".