Unesco. (1968). The Social sciences: Problems and orientations. Mouton.
Lua i Stíl Chicago (17ú heag.)Unesco. The Social Sciences: Problems and Orientations. The Hague: Mouton, 1968.
Lua MLA (9ú heag.)Unesco. The Social Sciences: Problems and Orientations. Mouton, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.