Outes-Leon, I., & Dercon, S. (2009). Survey attrition and attrition bias in Young Lives. Young Lives.
Cita Chicago (17th ed.)Outes-Leon, I., i S. Dercon. Survey Attrition and Attrition Bias in Young Lives. Young Lives, 2009.
Cita MLA (9th ed.)Outes-Leon, I., i S. Dercon. Survey Attrition and Attrition Bias in Young Lives. Young Lives, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.