Depasupil, W. B. (2002). Modern identification, registration system, uumpisahan ng BI. Kabayan.
Lua i Stíl Chicago (17ú heag.)Depasupil, William B. "Modern Identification, Registration System, Uumpisahan Ng BI." Kabayan 2002.
Lua MLA (9ú heag.)Depasupil, William B. "Modern Identification, Registration System, Uumpisahan Ng BI." Kabayan, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.