Half the Day Is Night

From Author Wars - https://authorwars.com/publications/half-the-day-is-night-16256.html

Overview:

Title: Half the Day Is Night
Author: Maureen F. McHugh
Year: 1994
ISBN-10: 031285479X
Publisher: Tor
Price: $21.95
Pages: 352
Binding: Hardcover
Type: Novel
Title Reference: Half the Day Is Night
Notes:
- "First edition: October 1994"
- First printing by number line 0 9 8 7 6 5 4 3 2 1
- "Jacket art by Paul Lehr|Jacket design by Irene Gallo" on rear flap; the central artwork is Lehr's, the diagrams surrounding same would be Gallo
- $31.95 in Canada