DION, T. R., & DION, T. R. (1993). Land Development For Civil Engineers Thomas R. Dion. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)DION, Thomas R., agus Thomas R. DION. Land Development For Civil Engineers Thomas R. Dion. John Wiley & Sons, 1993.
Lua MLA (8ú heag.)DION, Thomas R., agus Thomas R. DION. Land Development For Civil Engineers Thomas R. Dion. John Wiley & Sons, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.