Παραπομπή APA
North Atlantic Treaty Organization. Scientific Affairs Division., & Dubin, S. S. (1971). Professional obsolescence: A symposium held at Cambridge, England, in June 1970. London: English Universities Press.
Παραπομπή Chicago StyleNorth Atlantic Treaty Organization. Scientific Affairs Division., and Samuel Sanford Dubin. Professional Obsolescence: A Symposium Held At Cambridge, England, in June 1970. London: English Universities Press, 1971.
Παραπομπή MLANorth Atlantic Treaty Organization. Scientific Affairs Division., and Samuel Sanford Dubin. Professional Obsolescence: A Symposium Held At Cambridge, England, in June 1970. London: English Universities Press, 1971.
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