Schaefer, R. T. (2015). Sociology: A brief introduction (11th edition.). McGraw-Hill Education.
Lua i Stíl Chicago (17ú heag.)Schaefer, Richard T. Sociology: A Brief Introduction. 11th edition. New York: McGraw-Hill Education, 2015.
Lua MLA (9ú heag.)Schaefer, Richard T. Sociology: A Brief Introduction. 11th edition. McGraw-Hill Education, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.