Sipper, D. (1997). Production: Planning, control, and integration. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Sipper, Daniel. Production: Planning, Control, and Integration. McGraw-Hill, 1997.
Lua MLA (8ú heag.)Sipper, Daniel. Production: Planning, Control, and Integration. McGraw-Hill, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.