Cita APA (7th ed.)
Harrison, D., & Henderson, M. (1991). Hope for the world. Inter-Varsity.
Cita Chicago (17th ed.)
Harrison, Dan, i Maria Henderson. Hope for the World. Illinois: Inter-Varsity, 1991.
Cita MLA (9th ed.)
Harrison, Dan, i Maria Henderson. Hope for the World. Inter-Varsity, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.