MLA

Sirgy. Positive Balance: A Theory of Well-being and Positive Mental Health. Springer International Publishing, 2020.

APA

Sirgy, S. (2020). Positive Balance: A Theory of Well-Being and Positive Mental Health. Springer International Publishing.

Chicago

Sirgy Positive Balance: A Theory of Well-Being and Positive Mental Health. : Springer International Publishing, 2020.