Schwartz, S. (1972). Extraordinary. Alfred Publishing Co., Inc..
Lua i Stíl Chicago (17ú heag.)Schwartz, Stephen. Extraordinary. Louisville, United States: Alfred Publishing Co., Inc., 1972.
Lua MLA (9ú heag.)Schwartz, Stephen. Extraordinary. Alfred Publishing Co., Inc., 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.