Orr, L. (1990). The Homeless: Opposing viewpoints. Greenhaven Press.
Lua i Stíl Chicago (17ú heag.)Orr, Lisa. The Homeless: Opposing Viewpoints. San Diego, CA: Greenhaven Press, 1990.
Lua MLA (8ú heag.)Orr, Lisa. The Homeless: Opposing Viewpoints. Greenhaven Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.