Hanna, S. L. (1991). Person to person: Positive relationships don't just happen. Prentice-Hall.
Chicagoスタイル(17版)引用形式Hanna, Sharon L. Person to Person: Positive Relationships Don't Just Happen. Englewood Cliffs NJ: Prentice-Hall, 1991.
MLA(9版)引用形式Hanna, Sharon L. Person to Person: Positive Relationships Don't Just Happen. Prentice-Hall, 1991.
警告: この引用は必ずしも正確ではありません.