Retief Unbound by Keith Laumer
VINTAGE PAPERBACK [1979] ACE BOOKS
Book is like new and unread.
A collection of adventures featuring Keith Laumer's devil-may- care Galactic Diplomat. Protocol, Sealed Orders, Aide Memoire, Policy, and Palace Revolution were published in Envoy to New Worlds in 1963. Retief's Ransom is apparently new.