APA-čujuhus (7. p.)
(1968). Language problems of developing nations. John Willey & Sons Inc..
Chicago-čujuhus (17. p.)
Language Problems of Developing Nations. New York: John Willey & Sons Inc., 1968.
MLA-čujuhus (9. p.)
Language Problems of Developing Nations. John Willey & Sons Inc., 1968.
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