APA (7th ed.) Citation

Liddle, H. A. (2002). Family psychology: Science-based interventions. American Psychological Association.

Chicago Style (17th ed.) Citation

Liddle, Howard A. Family Psychology: Science-based Interventions. Washington, D.C: American Psychological Association, 2002.

MLA (9th ed.) Citation

Liddle, Howard A. Family Psychology: Science-based Interventions. American Psychological Association, 2002.