Cita APA (7th ed.)

Childs, G. W., & Prager, M. (2014). Reason 7 power!: The comprehensive guide. Cengage Learning PTR.

Cita Chicago (17th ed.)

Childs, G. W., i Michael Prager. Reason 7 Power!: The Comprehensive Guide. Boston: Cengage Learning PTR, 2014.

Cita MLA (9th ed.)

Childs, G. W., i Michael Prager. Reason 7 Power!: The Comprehensive Guide. Cengage Learning PTR, 2014.