Wagner, C. (1992). Prayer shield: How to intercede for pastors, christian leaders and others on the spiritual frontlines. Monarch.
Lua i Stíl Chicago (17ú heag.)Wagner, C.Peter. Prayer Shield: How to Intercede for Pastors, Christian Leaders and Others on the Spiritual Frontlines. Crowborough: Monarch, 1992.
Lua MLA (9ú heag.)Wagner, C.Peter. Prayer Shield: How to Intercede for Pastors, Christian Leaders and Others on the Spiritual Frontlines. Monarch, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.