NICHOLSON T. (1998). DEAR BOSS 52 WAYS TO DEVELOPMENT. EXCEL BOOKS.
Cita Chicago (17th ed.)NICHOLSON T. DEAR BOSS 52 WAYS TO DEVELOPMENT. EXCEL BOOKS, 1998.
Cita MLA (9th ed.)NICHOLSON T. DEAR BOSS 52 WAYS TO DEVELOPMENT. EXCEL BOOKS, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.