Wyckoff, D. C. (1986). Renewing the Sunday school and the CCD. Religious Education Press.
Lua i Stíl Chicago (17ú heag.)Wyckoff, D. Campbell. Renewing the Sunday School and the CCD. Birmingham, Ala.: Religious Education Press, 1986.
Lua MLA (8ú heag.)Wyckoff, D. Campbell. Renewing the Sunday School and the CCD. Religious Education Press, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.