Robert, P., & Pottier, M. (2006). Is Concern about Safety Changing ?
Cita Chicago (17th ed.)Robert, Philippe, i Marie-Lys Pottier. Is Concern About Safety Changing ? 2006.
Cita MLA (8th ed.)Robert, Philippe, i Marie-Lys Pottier. Is Concern About Safety Changing ? 2006.
Atenció: Aquestes cites poden no estar 100% correctes.