Cita APA (7th ed.)

BLANCHARD KEN. (2003). LEADERSHIP PILL. SIMON & SCHUSTER INC.

Cita Chicago (17th ed.)

BLANCHARD KEN. LEADERSHIP PILL. NEW YORK: SIMON & SCHUSTER INC, 2003.

Cita MLA (9th ed.)

BLANCHARD KEN. LEADERSHIP PILL. SIMON & SCHUSTER INC, 2003.