Gelpi, D. L. (1971). Pentecostalism, a theological viewpoint. Paulist Press.
Lua i Stíl Chicago (17ú heag.)Gelpi, Donald L. Pentecostalism, a Theological Viewpoint. New York: Paulist Press, 1971.
Lua MLA (8ú heag.)Gelpi, Donald L. Pentecostalism, a Theological Viewpoint. Paulist Press, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.