Drucker, P. F. (2008). Managing in a time of great change. Jaico Publishing House.
Chicago-čujuhus (17. p.)Drucker, Peter F. Managing in a Time of Great Change. Ahmedabad: Jaico Publishing House, 2008.
MLA-čujuhus (9. p.)Drucker, Peter F. Managing in a Time of Great Change. Jaico Publishing House, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.