APA-čujuhus (7. p.)
(1969). African boundary problems. The Scandinavian institute of African studies.
Chicago-čujuhus (17. p.)
African Boundary Problems. Uppsala: The Scandinavian institute of African studies, 1969.
MLA-čujuhus (9. p.)
African Boundary Problems. The Scandinavian institute of African studies, 1969.
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