Pandora's Legions

From Author Wars - https://authorwars.com/publications/pandoras-legions-274936.html

Overview:

Title: Pandora's Legions
Author: Christopher Anvil
Year: 2003
ISBN-10: 0671318616
Publisher: Baen Books
Price: $0.00
Binding: ebook
Type: Collection
Title Reference: Pandora's Legions
Notes: The various parts of ''Pandora's Legions'' were previously published as Part I, ''Pandora's Planet'' (ss), Parts II, IV, VI, VIII, the rest of "Pandora's Planet" novel, Part III "Pandora's Envoy", Part V, "The Toughest Opponent," Part VII, "Trap". So in one sense it's a novel called ''Pandora's Planet'' plus a short called "Sweet Reason", but in another sense it's a novel and several shorts.
Multiple version from the Baen Free Library. ISBN as listed in the file is from the paperback version. Publication date is from the What's New section of the Free Library website.