LEIGH ANDREW. (1999). PERFECT LEADER. ARROW BOOKS.
Cita Chicago (17th ed.)LEIGH ANDREW. PERFECT LEADER. LONDON: ARROW BOOKS, 1999.
Cita MLA (9th ed.)LEIGH ANDREW. PERFECT LEADER. ARROW BOOKS, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.