Price, J. L. (1969). Social facts: Introductory readings. Macmillan.
Lua i Stíl Chicago (17ú heag.)Price, James L. Social Facts: Introductory Readings. Lond.: Macmillan, 1969.
Lua MLA (8ú heag.)Price, James L. Social Facts: Introductory Readings. Macmillan, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.