Gaya APA

Hartness, J., Hartness, J. (2001). The Twenty Four Hour Turn-Around : Discovering the power to change(Trawas) . Grand Rapids: Fleming H. Revell.

Gaya MLA

Hartness, Jim., Hartness, Jim. "The Twenty Four Hour Turn-Around : Discovering the power to change(Trawas)". Grand Rapids: Fleming H. Revell, 2001. Text.