APA (7th ed.) Citation
LaHaye, T. F. (1968). How to be happy though married. Tyndale House Publishers.
Chicago Style (17th ed.) Citation
LaHaye, Tim F. How to Be Happy Though Married. Wheaton, Ill.: Tyndale House Publishers, 1968.
MLA (9th ed.) Citation
LaHaye, Tim F. How to Be Happy Though Married. Tyndale House Publishers, 1968.
Warning: These citations may not always be 100% accurate.