Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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