Richmond David. (1994). Introduction to Valuation (3rd.). Palgrave McMillan.
Lua i Stíl Chicago (17ú heag.)Richmond David. Introduction to Valuation. 3rd. New York: Palgrave McMillan, 1994.
Lua MLA (9ú heag.)Richmond David. Introduction to Valuation. 3rd. Palgrave McMillan, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.