Witt, J. (2018). SOC 2018 (Fifth edition.). McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Witt, John. SOC 2018. Fifth edition. New York, NY: McGraw Hill, 2018.
Lua MLA (8ú heag.)Witt, John. SOC 2018. Fifth edition. McGraw Hill, 2018.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.