Black, T. R. (2002). Understanding social science research (2nd ed.). Sage.
Citación estilo ChicagoBlack, Thomas R. Understanding Social Science Research. 2nd ed. London: Sage, 2002.
Cita MLABlack, Thomas R. Understanding Social Science Research. 2nd ed. Sage, 2002.
Warning: These citations may not always be 100% accurate.