Cita APA

Polly, S., & Britton, K. (2015). Character strengths matter: How to live a full life. United States of America: Positive Psychology News.

Citación estilo Chicago

Polly, Shannon,, y Kathryn Britton. Character Strengths Matter: How to Live a Full Life. United States of America: Positive Psychology News, 2015.

Cita MLA

Polly, Shannon,, y Kathryn Britton. Character Strengths Matter: How to Live a Full Life. United States of America: Positive Psychology News, 2015.