APA-čujuhus (7. p.)
Barker, P. (1969). Operation Cold Chop: The coup that toppled Nkrumah. Ghana Pub. Corp..
Chicago-čujuhus (17. p.)
Barker, Peter. Operation Cold Chop: The Coup That Toppled Nkrumah. [Accra]: Ghana Pub. Corp., 1969.
MLA-čujuhus (9. p.)
Barker, Peter. Operation Cold Chop: The Coup That Toppled Nkrumah. Ghana Pub. Corp., 1969.
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