Cita APA (7a ed.)

DRUCKER PETER F. (1980). MANAGING IN TRUBULENT TIMES. PAN BOOKS LTD.

Cita Chicago Style (17a ed.)

DRUCKER PETER F. MANAGING IN TRUBULENT TIMES. GREAT BRITAIN: PAN BOOKS LTD, 1980.

Cita MLA (9a ed.)

DRUCKER PETER F. MANAGING IN TRUBULENT TIMES. PAN BOOKS LTD, 1980.