(1980). Language problems & language planning. University of Texas Press in cooperation with the Center for Research and Documentation on World Language Problems.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Language Problems & Language Planning. Austin, Texas: University of Texas Press in cooperation with the Center for Research and Documentation on World Language Problems, 1980.
MLA -ийн эшлэл (9 дэх хэвлэлт)Language Problems & Language Planning. University of Texas Press in cooperation with the Center for Research and Documentation on World Language Problems, 1980.
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