Citazione Stile APA (7a Edizione)

DRUCKER PETER F. (1999). MANAGEMENT CHALLENGES FOR THE 21ST CENTURY. BUTTERWORTH-HEINEMANN.

Citazione stile Chigago Style (17a edizione)

DRUCKER PETER F. MANAGEMENT CHALLENGES FOR THE 21ST CENTURY. OXFORD: BUTTERWORTH-HEINEMANN, 1999.

Citatione MLA (9a ed.)

DRUCKER PETER F. MANAGEMENT CHALLENGES FOR THE 21ST CENTURY. BUTTERWORTH-HEINEMANN, 1999.