Sloan, M. C. (2012). The harmonius organ of Sedulius Scottus: Introduction to his Collectaneum in apostolum and translation of its prologue and commentaries on Galatians and Ephesians. De Gruyter.

Sloan, Michael C. The Harmonius Organ of Sedulius Scottus: Introduction to His Collectaneum in Apostolum and Translation of Its Prologue and Commentaries on Galatians and Ephesians. Berlin ; Boston: De Gruyter, 2012.

Sloan, Michael C. The Harmonius Organ of Sedulius Scottus: Introduction to His Collectaneum in Apostolum and Translation of Its Prologue and Commentaries on Galatians and Ephesians. De Gruyter, 2012.