Ritter, M. (1999). Scientists may have way to prevent schizophrenia. Manila Bulletin.
Lua i Stíl Chicago (17ú heag.)Ritter, Malcolm. "Scientists May Have Way to Prevent Schizophrenia." Manila Bulletin 1999.
Lua MLA (9ú heag.)Ritter, Malcolm. "Scientists May Have Way to Prevent Schizophrenia." Manila Bulletin, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.