Nakpil, C. G., & Technology Resource Center. (1981). survival catalog, 2. Technology Resource center.
Lua i Stíl Chicago (17ú heag.)Nakpil, Carmen Guerrero, agus Technology Resource Center. Survival Catalog, 2. Makati: Technology Resource center, 1981.
Lua MLA (9ú heag.)Nakpil, Carmen Guerrero, agus Technology Resource Center. Survival Catalog, 2. Technology Resource center, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.