Cita APA (7th ed.)
LEWIS, J. (1999). MAKING A REAL DIFFERENCE.
Cita Chicago (17th ed.)
LEWIS, J. MAKING A REAL DIFFERENCE. 1999.
Cita MLA (9th ed.)
LEWIS, J. MAKING A REAL DIFFERENCE. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.