Gaya APA

Marks, J. (2008). Reasons to Believe: One Man's Journey Among the Evangelicals and the Faith He Left Behind . United States of America: HarperCollins e-books.

Gaya MLA

Marks, John. "Reasons to Believe: One Man's Journey Among the Evangelicals and the Faith He Left Behind". United States of America: HarperCollins e-books, 2008. e-book.