Ruddell, R. B., Graves, B. W., & Taylor, M. (1978). Summer fun. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Ruddell, Robert B., Barbara W. Graves, agus Mark Taylor. Summer Fun. Boston: Allyn and Bacon, 1978.
Lua MLA (9ú heag.)Ruddell, Robert B., et al. Summer Fun. Allyn and Bacon, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.