Vogt, W. P. (2013). Sage quantitative research methods: Alternative to hypothesis testing. Sage.
Lua i Stíl Chicago (17ú heag.)Vogt, W. Paul. Sage Quantitative Research Methods: Alternative to Hypothesis Testing. Los Angeles: Sage, 2013.
Lua MLA (9ú heag.)Vogt, W. Paul. Sage Quantitative Research Methods: Alternative to Hypothesis Testing. Sage, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.