University of London. Institute of Education. Library & Williams, R. (1975). In memoriam Nicholas Hans: The man, his books, his papers. The Library.
Chicago Style (17. basım) AtıfUniversity of London. Institute of Education. Library ve Robert Williams. In Memoriam Nicholas Hans: The Man, His Books, His Papers. London: The Library, 1975.
MLA (8th ed.) AtıfUniversity of London. Institute of Education. Library ve Robert Williams. In Memoriam Nicholas Hans: The Man, His Books, His Papers. The Library, 1975.
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