RITZ, G. J., & RITZ, G. J. (1994). Total Construction Project Management George J.ritz. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)RITZ, George J., agus George J. RITZ. Total Construction Project Management George J.ritz. McGraw-Hill, 1994.
Lua MLA (8ú heag.)RITZ, George J., agus George J. RITZ. Total Construction Project Management George J.ritz. McGraw-Hill, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.