Gerstorf, S. (2012). SOEP Wave Report 2011.
Cita Chicago (17th ed.)Gerstorf, Sandra. SOEP Wave Report 2011. Berlin, 2012.
Cita MLA (8th ed.)Gerstorf, Sandra. SOEP Wave Report 2011. 2012.
Atenció: Aquestes cites poden no estar 100% correctes.
Gerstorf, S. (2012). SOEP Wave Report 2011.
Cita Chicago (17th ed.)Gerstorf, Sandra. SOEP Wave Report 2011. Berlin, 2012.
Cita MLA (8th ed.)Gerstorf, Sandra. SOEP Wave Report 2011. 2012.