The Trouble Twisters

From Author Wars - https://authorwars.com/publications/the-trouble-twisters-188837.html

Overview:

Title: The Trouble Twisters
Author: Poul Anderson
Year: 1967
Publisher: Berkley Medallion
Price: $0.60
Pages: 190
Binding: Paperback
Type: Collection
Title Reference: The Trouble Twisters
Notes:
• "Berkley Medallion Edition, June, 1967" • Printing not stated, no number line. • The artist is not credited, Powers is on the artwork. • Copyright page mistakenly has the magazine version as "Trade Team" instead of "Trader Team"