Shaffer, P. (2013). Q-squared: Combining qualitative and quantitative approaches in poverty analysis (First edition.). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Shaffer, Paul. Q-squared: Combining Qualitative and Quantitative Approaches in Poverty Analysis. First edition. Oxford: Oxford University Press, 2013.
Lua MLA (9ú heag.)Shaffer, Paul. Q-squared: Combining Qualitative and Quantitative Approaches in Poverty Analysis. First edition. Oxford University Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.