Drucker, P. F. (2007). People and Performance. Harvard Business School Pub.
Chicago-čujuhus (17. p.)Drucker, Peter F. People and Performance. Boston: Harvard Business School Pub, 2007.
MLA-čujuhus (9. p.)Drucker, Peter F. People and Performance. Harvard Business School Pub, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.