Manalac, G. S. (1978). Vision of tomorrow. Mansons Pub. House.
Lua i Stíl Chicago (17ú heag.)Manalac, Gaudencio S. Vision of Tomorrow. San Juan, Metro Manila: Mansons Pub. House, 1978.
Lua MLA (9ú heag.)Manalac, Gaudencio S. Vision of Tomorrow. Mansons Pub. House, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.