RAO, P. &. W. (2008). Critical Infrastructure: An Overview. The ICFAI.
Lua i Stíl Chicago (17ú heag.)RAO, Pramod & Wawge. Critical Infrastructure: An Overview. Hydrabad: The ICFAI, 2008.
Lua MLA (9ú heag.)RAO, Pramod & Wawge. Critical Infrastructure: An Overview. The ICFAI, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.