Richter, E. (1988). English in higher education and scientific work. Verlag Enzyklopädie.
Čikaški stil citiranja (17. izdanje)Richter, Ernst-Joachim. English in Higher Education and Scientific Work. Leipzig: Verlag Enzyklopädie, 1988.
MLA način citiranja (8. izdanje)Richter, Ernst-Joachim. English in Higher Education and Scientific Work. Verlag Enzyklopädie, 1988.
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