Citazione Stile APA (7a Edizione)

Hanna, S. L. (1991). Person to person: Positive relationships don't just happen. Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Hanna, Sharon L. Person to Person: Positive Relationships Don't Just Happen. Englewood Cliffs NJ: Prentice-Hall, 1991.

Citatione MLA (9a ed.)

Hanna, Sharon L. Person to Person: Positive Relationships Don't Just Happen. Prentice-Hall, 1991.