Dooley, D. (1984). Social research methods. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Dooley, David. Social Research Methods. Englewood Cliffs, N.J.: Prentice-Hall, 1984.
Lua MLA (9ú heag.)Dooley, David. Social Research Methods. Prentice-Hall, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.