APA (7th ed.) Zitazioa
Clarkson, E. M. (1985). Grace grows best in winter: Help for those who must suffer. W.B. Eerdmans Pub. Co..
Chicago Style (17th ed.) Zitazioa
Clarkson, E. Margaret. Grace Grows Best in Winter: Help for Those Who Must Suffer. Grand Rapids, Mich.: W.B. Eerdmans Pub. Co., 1985.
MLA (9th ed.) Zitazioa
Clarkson, E. Margaret. Grace Grows Best in Winter: Help for Those Who Must Suffer. W.B. Eerdmans Pub. Co., 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.