Lua APA (7ú heag.)
ebrary, Inc, & Royse, D. D. (2009). Needs assessment. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus David D. Royse. Needs Assessment. New York: Oxford University Press, 2009.
Lua MLA (9ú heag.)
ebrary, Inc, agus David D. Royse. Needs Assessment. Oxford University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.