Doughtie, P., & Perry, J. (2010). Letters to God: A novel. Zonderkidz.
Cita Chicago (17th ed.)Doughtie, Patrick, i John Perry. Letters to God: A Novel. Grand Rapids, Michigan: Zonderkidz, 2010.
Cita MLA (9th ed.)Doughtie, Patrick, i John Perry. Letters to God: A Novel. Zonderkidz, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.