Gupta B.R & Singhal Vandana. (2007). Energy Conversion. New Age International (P) Limited Publishers.
Lua i Stíl Chicago (17ú heag.)Gupta B.R agus Singhal Vandana. Energy Conversion. New Delhi: New Age International (P) Limited Publishers, 2007.
Lua MLA (9ú heag.)Gupta B.R agus Singhal Vandana. Energy Conversion. New Age International (P) Limited Publishers, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.