APA (7th ed.) Citation

Engel, J. W., & Lingren, H. G. (1991). Marriage and family therapy: Who needs it? where to find it? The Institute.

Chicago Style (17th ed.) Citation

Engel, John W., and Herbert G. Lingren. Marriage and Family Therapy: Who Needs It? Where to Find It? [Honolulu, Hawaii]: The Institute, 1991.

MLA (9th ed.) Citation

Engel, John W., and Herbert G. Lingren. Marriage and Family Therapy: Who Needs It? Where to Find It? The Institute, 1991.