Center for Research and Documentation on World Language Problems. (1977). Language Problems and Language Planning. University of Texas Press.
Chicago Style (17. basım) AtıfCenter for Research and Documentation on World Language Problems. Language Problems and Language Planning. Austin, Tex: University of Texas Press, 1977.
MLA (8th ed.) AtıfCenter for Research and Documentation on World Language Problems. Language Problems and Language Planning. University of Texas Press, 1977.
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