Smoke, R., & By Harman , . W. (1987). Paths to peace : exploring the feasibility: Of sustainable peace. Westview Pr..
Chicago-viite (17. p.)Smoke, Richard, ja Willis By Harman. Paths to Peace : Exploring the Feasibility: Of Sustainable Peace. Boulde, Colo.: Westview Pr., 1987.
MLA-viite (9. p.)Smoke, Richard, ja Willis By Harman. Paths to Peace : Exploring the Feasibility: Of Sustainable Peace. Westview Pr., 1987.
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