Cita APA (7a ed.)

Olson, D. H. L. (1989). Families: What makes them work (Updated ed.). Sage Publications.

Cita Chicago Style (17a ed.)

Olson, David H. L. Families: What Makes Them Work. Updated ed. Newbury Park, Calif.: Sage Publications, 1989.

Cita MLA (8a ed.)

Olson, David H. L. Families: What Makes Them Work. Updated ed. Sage Publications, 1989.