Gaya APA

KOUZES, J, M., POSNER, B, Z. (2011). CREDIBILITY: How Leaders Gain and Lose It, Why People Demand It . : .

Gaya MLA

KOUZES, James, M.., POSNER, Barry, Z.. "CREDIBILITY: How Leaders Gain and Lose It, Why People Demand It". : , 2011. Text.