LUFT, J. (1969). Of Human interaction. Mayfield Pub.
Lua i Stíl Chicago (17ú heag.)LUFT, Joseph. Of Human Interaction. California: Mayfield Pub, 1969.
Lua MLA (9ú heag.)LUFT, Joseph. Of Human Interaction. Mayfield Pub, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.