Collins, R. (1998). The discovery of society. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Collins, Randall. The Discovery of Society. McGraw-Hill, 1998.
Lua MLA (8ú heag.)Collins, Randall. The Discovery of Society. McGraw-Hill, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.