1. Zimbabwe, a country study Publication/Creation: For sale by the Supt. of Docs., U.S. G.P.O.. Resource Type: Book Edition: 2nd edition. Access & Availability: Loading
2. The Zimmermann telegram Author/Creator: Tuchman, Barbara W. 1912-1989. (Barbara Wertheim) Publication/Creation: New York : Macmillan, 1966, c1958 Resource Type: Book Edition: [New ed.]. Access & Availability: Loading