PARK, C. S. (1990). Advanced Engineering Economics. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)PARK, Chan S. Advanced Engineering Economics. John Wiley & Sons, 1990.
Lua MLA (8ú heag.)PARK, Chan S. Advanced Engineering Economics. John Wiley & Sons, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.