Fox, J., & Pescosolido, J. R. (1990). Steck-Vaughn spelling. Steck-Vaughn, ; Worldview.
Lua i Stíl Chicago (17ú heag.)Fox, Jeremy, agus John R. Pescosolido. Steck-Vaughn Spelling. Austin, Tex. : New Delhi: Steck-Vaughn, ; Worldview, 1990.
Lua MLA (8ú heag.)Fox, Jeremy, agus John R. Pescosolido. Steck-Vaughn Spelling. Steck-Vaughn, ; Worldview, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.