Wald, O. (1975). The joy of discovery in Bible study (Rev ed.). Augsburg P.House.
Lua i Stíl Chicago (17ú heag.)Wald, Oletta. The Joy of Discovery in Bible Study. Rev ed. Minnesota: Augsburg P.House, 1975.
Lua MLA (9ú heag.)Wald, Oletta. The Joy of Discovery in Bible Study. Rev ed. Augsburg P.House, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.