APA
Landis J. T. &. L. M. G., . (1977). Building a successful marriage.7th ed. Prentice Hall, New Jersey: .
Chicago
Landis J T & Landis M G, . 1977. Building a successful marriage.7th ed. Prentice Hall, New Jersey: .
Harvard
Landis J. T. &. L. M. G., . (1977). Building a successful marriage.7th ed. Prentice Hall, New Jersey: .
MLA
Landis J T & Landis M G, . Building a successful marriage.7th ed. Prentice Hall, New Jersey: . 1977.