Hudson W Ronald, H. (1997). Infrastructure Management: Integrating Design, Construction, Maintenance (09th.). Mc Graw Hill Education Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Hudson W Ronald, Hass. Infrastructure Management: Integrating Design, Construction, Maintenance. 09th. New Delhi: Mc Graw Hill Education Pvt. Ltd, 1997.
Lua MLA (9ú heag.)Hudson W Ronald, Hass. Infrastructure Management: Integrating Design, Construction, Maintenance. 09th. Mc Graw Hill Education Pvt. Ltd, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.