Panneerselvam R. (2020). Engineering Economy (02nd.). PHI Learning.
Lua i Stíl Chicago (17ú heag.)Panneerselvam R. Engineering Economy. 02nd. New Delhi: PHI Learning, 2020.
Lua MLA (9ú heag.)Panneerselvam R. Engineering Economy. 02nd. PHI Learning, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.