APA-čujuhus (7. p.)
Ludwwig, E. (1960). The nile: The lifr-story of a river. George Allen.
Chicago-čujuhus (17. p.)
Ludwwig, Emil. The Nile: The Lifr-story of a River. London: George Allen, 1960.
MLA-čujuhus (9. p.)
Ludwwig, Emil. The Nile: The Lifr-story of a River. George Allen, 1960.
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