Ultimatum

Overview:

• Title: Ultimatum
• Author: Keith Laumer
• Year: 1963
• Type: Short Fiction

Editions/Publications:

• 1965. Galactic Diplomat (1965, Keith Laumer Doubleday, $3.95, 227 pages, Hardcover, Collection)
• 1973. Gates to Tomorrow (1973, Andre Norton, Ernestine Donaldy Atheneum, Hardcover, Anthology)
• 1982. Retief: Diplomat at Arms (1982, Keith Laumer Pocket, Paperback, Collection)

Resources: