UNESCO. (1976). World guide to higher education: A comparative survey of sytems,degrees and qualifications. Bowker publishing company england.
Παραπομπή Chicago StyleUNESCO. World Guide to Higher Education: A Comparative Survey of Sytems,degrees and Qualifications. Bowker publishing company england, 1976.
Παραπομπή MLAUNESCO. World Guide to Higher Education: A Comparative Survey of Sytems,degrees and Qualifications. Bowker publishing company england, 1976.
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