Aronson, J. (1992). Penicillin.
Lua i Stíl Chicago (17ú heag.)Aronson, J. Penicillin. 1992.
Lua MLA (9ú heag.)Aronson, J. Penicillin. 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)