APA (7th ed.) Citation

LaHaye, T. F. (1968). How to be happy though married. Tyndale House.

Chicago Style (17th ed.) Citation

LaHaye, Tim F. How to Be Happy Though Married. Wheaton, Ill: Tyndale House, 1968.

MLA (9th ed.) Citation

LaHaye, Tim F. How to Be Happy Though Married. Tyndale House, 1968.