Drucker, P. F. (1977). People and Performance: The Best of Peter Drucker on management. Allied Publishers.
Dyfyniad Arddull ChicagoDrucker, Peter F. People and Performance: The Best of Peter Drucker on Management. Bombay: Allied Publishers, 1977.
Dyfyniad MLADrucker, Peter F. People and Performance: The Best of Peter Drucker on Management. Allied Publishers, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.