Mission of Gravity

From Author Wars - https://authorwars.com/publications/mission-of-gravity-542867.html

Overview:

Title: Mission of Gravity
Author: Hal Clement
Year: 1979
ISBN-10: 0345270924
Publisher: Del Rey / Ballantine
Price: C$2.25
Pages: 233
Binding: Paperback
Type: Novel
Title Reference: Mission of Gravity
Notes:
• "First Ballantine Books Edition: January 1978 " • "Second Printing: May 1979" • "First Canadian Printing: February 1978", no number line • "Cover art by H. R. Van Dongen" on copyright page, no visible signature on the artwork • Cover printed in the US, book in Canada • OCLC has no record for the printing [2018-05-04]