Kelley, H. H. (1983). Close relationships. W. H. Freeman.
Lua i Stíl Chicago (17ú heag.)Kelley, Harold H. Close Relationships. New York: W. H. Freeman, 1983.
Lua MLA (9ú heag.)Kelley, Harold H. Close Relationships. W. H. Freeman, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.