APA (7th ed.) Zitazioa
LaHaye, T. F. (1968). How to be happy though married. Tyndale House Publishers.
Chicago Style (17th ed.) Zitazioa
LaHaye, Tim F. How to Be Happy Though Married. Wheaton, Ill.: Tyndale House Publishers, 1968.
MLA (9th ed.) Zitazioa
LaHaye, Tim F. How to Be Happy Though Married. Tyndale House Publishers, 1968.
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