APA-čujuhus (7. p.)
American University (Washington, D.C.). Foreign Area Studies, Herrick, A. B., & Kaplan, I. (1979). Angola: A country study (2d ed.). for sale by the Supt. of Docs., U.S. Govt. Print. Off..
Chicago-čujuhus (17. p.)
American University (Washington, D.C.). Foreign Area Studies, Allison Butler Herrick, juo Irving Kaplan. Angola: A Country Study. 2d ed. Washington ; Foreign Area Studies, American University: for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979.
MLA-čujuhus (9. p.)
American University (Washington, D.C.). Foreign Area Studies, et al. Angola: A Country Study. 2d ed. for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979.
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