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==Further reading==
* Dunn, James D G. [httphttps://books.google.com/books?id=mvJmxO2EN68C ''Baptism in the Holy Spirit: A Re-examination of the New Testament Teaching on the Gift of the Spirit in Relation to Pentecostalism Today.''] SCM Press, 1970.
* Horn, William M. "Speaking in Tongues: a Retrospective Appraisal." ''Lutheran Quarterly'' 1965 17(4): 316-329 14p
* Synan, Vinson. ''The Holiness-Pentecostal Movement in the United States.'' (Eerdmans, 1971). 248 pp.
* Synan, Vinson. [httphttps://books.google.com/books?id=Q-npoRWoZuUC ''The Holiness-Pentecostal Tradition: Charismatic Movements in the Twentieth Century.''] (Eerdmans, 1997). 340 pp.
* Hamilton, Michael P. (Ed.). ''The Charismatic Movement'' (Eerdmans, 1975). 194 pp.
* Williams, J. Rodman. ''The Pentecostal Reality: A Prominent theologian takes a hard look at the Charismatic in the Charismatic Renewal''. (Logos International, 1972). 109 pp. favorable ([[Presbyterian]] perspective) [http://www.cbn.com/spirituallife/BibleStudyAndTheology/DrWilliams/BK_Pentacostal_preface.aspx online edition]
