APA-čujuhus (7. p.)
Collins, R. O., & Collins, R. O. (1971). African history: Texts and cases. Random House.
Chicago-čujuhus (17. p.)
Collins, Robert O., juo Rober O. Collins. African History: Texts and Cases. New York: Random House, 1971.
MLA-čujuhus (9. p.)
Collins, Robert O., juo Rober O. Collins. African History: Texts and Cases. Random House, 1971.
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