Gaya APA

Drucker, P, F. (1989). The New Realities: In Government and Politics, in Economics and Business, in Society and World View . New York.: Harper and Row Publisher Inc..

Gaya MLA

Drucker, Peter, F.. "The New Realities: In Government and Politics, in Economics and Business, in Society and World View". New York.: Harper and Row Publisher Inc., 1989. Koleksi Elektronik.