Dand, R. (1970). Purchasing in the construction industry / R. Dand and David Farmer. Gower Press.
Lua i Stíl Chicago (17ú heag.)Dand, Richard. Purchasing in the Construction Industry / R. Dand and David Farmer. [London]: Gower Press, 1970.
Lua MLA (9ú heag.)Dand, Richard. Purchasing in the Construction Industry / R. Dand and David Farmer. Gower Press, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.