BOCKRATH, J. T. (1995). Contracts And The Legal Environment For Engineers And Architects Joseph T. Bockrath. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)BOCKRATH, Joseph T. Contracts And The Legal Environment For Engineers And Architects Joseph T. Bockrath. McGraw-Hill, 1995.
Lua MLA (8ú heag.)BOCKRATH, Joseph T. Contracts And The Legal Environment For Engineers And Architects Joseph T. Bockrath. McGraw-Hill, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.