Braybrooke, D. (1987). Philosophy of social science. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Braybrooke, David. Philosophy of Social Science. Englewood Cliffs, N.J: Prentice-Hall, 1987.
Lua MLA (9ú heag.)Braybrooke, David. Philosophy of Social Science. Prentice-Hall, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.