Gaya APA

Peter, D, F. (2015). On leadership if you nothing else on teadership read these definitive articles from harvard business reviw . Ameria: Printed in the United.

Gaya MLA

Peter, Drucker, F.. "On leadership if you nothing else on teadership read these definitive articles from harvard business reviw". Ameria: Printed in the United, 2015. Text.