Law, A. (1807). Harmonic companion, and guide to social worship: Being a choice selection of tunes, adapted to the various psalms and hymns, used by the different societies in the United States : together with the principles of music, and easy lessons for learners. Philadelphia: published by the author, and David Hogan ; from the press of Thomas T. Stiles.

Law, Andrew. Harmonic Companion, and Guide to Social Worship: Being a Choice Selection of Tunes, Adapted to the Various Psalms and Hymns, Used By the Different Societies in the United States : Together With the Principles of Music, and Easy Lessons for Learners. Philadelphia: published by the author, and David Hogan ; from the press of Thomas T. Stiles, 1807.

Law, Andrew. Harmonic Companion, and Guide to Social Worship: Being a Choice Selection of Tunes, Adapted to the Various Psalms and Hymns, Used By the Different Societies in the United States : Together With the Principles of Music, and Easy Lessons for Learners. Philadelphia: published by the author, and David Hogan ; from the press of Thomas T. Stiles, 1807.