Drucker, P. F. (1971). The Age Of Discountinuty Guidlines To Our Changing Society Peter F. Drucker. Pan Books.
Čikaški stil citiranja (17. izdanje)Drucker, Peter F. The Age Of Discountinuty Guidlines To Our Changing Society Peter F. Drucker. Pan Books, 1971.
MLA način citiranja (8. izdanje)Drucker, Peter F. The Age Of Discountinuty Guidlines To Our Changing Society Peter F. Drucker. Pan Books, 1971.
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