Lua APA (7ú heag.)
Harrison, W. F., & Welker, D. W. (1997). Intermediate Spanish memory book: A new approach to vocabulary building. University of Texas Press.
Lua i Stíl Chicago (17ú heag.)
Harrison, William F., agus Dorothy Winters Welker. Intermediate Spanish Memory Book: A New Approach to Vocabulary Building. Austin: University of Texas Press, 1997.
Lua MLA (9ú heag.)
Harrison, William F., agus Dorothy Winters Welker. Intermediate Spanish Memory Book: A New Approach to Vocabulary Building. University of Texas Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.