Ferm, R. O., & forworded by Pain, S. W. (1958). Coopertive evangelism: Is Billy Graham right or wrong. Zondrvan.
Lua i Stíl Chicago (17ú heag.)Ferm, Robert O., agus Stephen W. forworded by Pain. Coopertive Evangelism: Is Billy Graham Right or Wrong. Grand Rapids, MI: Zondrvan, 1958.
Lua MLA (9ú heag.)Ferm, Robert O., agus Stephen W. forworded by Pain. Coopertive Evangelism: Is Billy Graham Right or Wrong. Zondrvan, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.