APA citiranje

Peter F Drucker. (2002). Management Challenges for the 21st Century. Butterworth-Heinemann.

Chicago Edition Citation

Peter F Drucker. Management Challenges for the 21st Century. Butterworth-Heinemann, 2002.

MLA citiranje

Peter F Drucker. Management Challenges for the 21st Century. Butterworth-Heinemann, 2002.

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