The seven principles for making marriage work
MLA
Gottman, John Mordechai, and Nan Silver. The Seven Principles for Making Marriage Work. Second edition. New York: Harmony Books, 2015.
APA
Gottman, J. Mordechai, & Silver, N. (2015). The seven principles for making marriage work. Second edition. New York: Harmony Books.
Chicago
Gottman, John Mordechai., and Nan Silver. The Seven Principles for Making Marriage Work. Second edition. New York: Harmony Books, 2015.