APA (7th ed.) Zitazioa
Borthwick, P. (1991). How to be a world-class Christian. Victor Books.
Chicago Style (17th ed.) Zitazioa
Borthwick, Paul. How to Be a World-class Christian. Wheaton: Victor Books, 1991.
MLA (9th ed.) Zitazioa
Borthwick, Paul. How to Be a World-class Christian. Victor Books, 1991.
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