DRUCKER , P. (1995). MANAGING AT TIME OF GREAT CHANGE. MAGRAW HILL.
Cita Chicago Style (17a ed.)DRUCKER , P.F. MANAGING AT TIME OF GREAT CHANGE. OXFORD: MAGRAW HILL, 1995.
Cita MLA (9a ed.)DRUCKER , P.F. MANAGING AT TIME OF GREAT CHANGE. MAGRAW HILL, 1995.
Precaución: Estas citas no son 100% exactas.