St. Edward's University (Austin, Tex.). Center for Continuing Education. Environics Center. Environics Center records.
Chicago Style (17. basım) AtıfSt. Edward's University (Austin, Tex.). Center for Continuing Education. Environics Center. Environics Center Records.
MLA (8th ed.) AtıfSt. Edward's University (Austin, Tex.). Center for Continuing Education. Environics Center. Environics Center Records.
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