Lua APA (7ú heag.)
Alvira, T., Clavell, L., Melendo, T., & Supan, L. (1991). Metaphysics. Sinag-tala Publishers.
Lua i Stíl Chicago (17ú heag.)
Alvira, Tomás, Luis Clavell, Tomás Melendo, agus Luis Supan. Metaphysics. Manila: Sinag-tala Publishers, 1991.
Lua MLA (9ú heag.)
Alvira, Tomás, et al. Metaphysics. Sinag-tala Publishers, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.