APA (7th ed.) Zitazioa
Jackson, C. (1979). The Christian's secret of a happy life for today. World wide publ..
Chicago Style (17th ed.) Zitazioa
Jackson, Catherine. The Christian's Secret of a Happy Life for Today. Minnesota: World wide publ., 1979.
MLA (9th ed.) Zitazioa
Jackson, Catherine. The Christian's Secret of a Happy Life for Today. World wide publ., 1979.
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