Davis, L. E., & Engel, R. J. (2011). Measuring race and ethnicity. Springer eBook..
Cita Chicago (17th ed.)Davis, Larry E., i Rafael J. Engel. "Measuring Race and Ethnicity." Springer EBook. 2011.
Cita MLA (9th ed.)Davis, Larry E., i Rafael J. Engel. "Measuring Race and Ethnicity." Springer EBook., 2011.
Atenció: Aquestes cites poden no estar 100% correctes.