APA-čujuhus (7. p.)
Percy, D. C. (1948). Doctor to Africa. Sudan Interior Mission.
Chicago-čujuhus (17. p.)
Percy, Douglas C. Doctor to Africa. U.S.A.: Sudan Interior Mission, 1948.
MLA-čujuhus (9. p.)
Percy, Douglas C. Doctor to Africa. Sudan Interior Mission, 1948.
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