LONDEN J KEITH. (1981). MAKING IT HAPPEN. AMACOM.
Cita Chicago (17th ed.)LONDEN J KEITH. MAKING IT HAPPEN. BOMBAY: AMACOM, 1981.
Cita MLA (9th ed.)LONDEN J KEITH. MAKING IT HAPPEN. AMACOM, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.