Hartman, D. (1976). A guidebook to discipleship. Harvest House.
Lua i Stíl Chicago (17ú heag.)Hartman, Dog. A Guidebook to Discipleship. Harvest House, 1976.
Lua MLA (9ú heag.)Hartman, Dog. A Guidebook to Discipleship. Harvest House, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.