Marcos, F. E. (1978). Assistance for the small and medium-scale industries.
Lua i Stíl Chicago (17ú heag.)Marcos, Ferdinand E. Assistance for the Small and Medium-scale Industries. 1978.
Lua MLA (9ú heag.)Marcos, Ferdinand E. Assistance for the Small and Medium-scale Industries. 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.