| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Can We Talk: Sharing Your Faith in a Pre-Christian World | 978-0-687-08416-6 (0-687-08416-4) | 1999 |
| John Wesley: His Life & Theology | 978-0-310-36661-4 (0-310-36661-5) | 1982 |
| The Story of Evangelism: A History of the Witness to the Gospel | 978-0-687-35203-6 (0-687-35203-7) | 2006 |
G J · G. T. · Jr. Robert G. Tuttle · R.J. · R. T. · R. Tuttle · Robert G. · Robert G Tuttle · Robert J. · Robert T. · Robert T. Jr. · T.J. · Tuttle Jr