Rockets in Ursa Major

From Author Wars - https://authorwars.com/publications/rockets-in-ursa-major-265647.html

Overview:

Title: Rockets in Ursa Major
Author: Fred Hoyle, Geoffrey Hoyle
Year: Unknown
Publisher: Fawcett Crest
Price: $1.25
Pages: 144
Binding: Paperback
Type: Novel
Title Reference: Rockets in Ursa Major
Notes:
Copyright page gives date of 1st printing with NO indication that this a later (probably 2nd) printing.
On the title page is the statement “Based on the play of that title by Fred Hoyle.”