Trepte, P. (2006). Regulating procurement: Understanding the ends and means of public procurement regulation. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Trepte, Peter-Armin. Regulating Procurement: Understanding the Ends and Means of Public Procurement Regulation. New York: Oxford University Press, 2006.
Lua MLA (9ú heag.)Trepte, Peter-Armin. Regulating Procurement: Understanding the Ends and Means of Public Procurement Regulation. Oxford University Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.