Triplanetary

From Author Wars - https://authorwars.com/publications/triplanetary-181093.html

Overview:

Title: Triplanetary
Author: E. E. 'Doc' Smith
Year: 1973
ISBN-10: 0586037608
Publisher: Panther
Price: £0.35
Pages: 254
Binding: Paperback
Type: Novel
Title Reference: Triplanetary
Notes: Published in Panther 1972 Reprinted 1972, 1973 (3 times) Book one is titled "Dawn", book two "The World War", book three "Triplanetary".