Copeland, A. P., & White, K. M. (1991). Studying families. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Copeland, Anne P., agus Kathleen M. White. Studying Families. Newbury Park, Calif.: Sage Publications, 1991.
Lua MLA (8ú heag.)Copeland, Anne P., agus Kathleen M. White. Studying Families. Sage Publications, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.