Haar, James, and John Nadas. 2008. The Medici, the Signoria, the Pope: Sacred Polyphony in Florence, 1432–1448. Recercare, 20: 25-93.

Haar, James, and John Nadas. 2007. Johannes de Anglia (John Hothby): Notes on His Career in Italy. Acta Musicologica, 79: 291-358.

Haar, James. 2004. The Vatican Manuscript Urb. Lat. 1411: An Undervalued Source? Manoscritti di polifonia nel quattrocento europeo, 65-92. Trent: Soprintendenza per i Beni librari e archivistici.

Fenlon, Iain, and James Haar. 1988. The Italian Madrigal in the Early Sixteenth Century: Sources and Interpretation.  Cambridge University Press.

Haar, James. 1986. Improvvisatori and Their Relationship to Sixteenth-Century Music. Essays on Italian Poetry and Music in the Renaissance, 1350-1600, 76-99. Berkeley: University of California Press.

Haar, James. 1981. The Early Madrigal: A Re-Appraisal of Its Sources and Its Character. Music in Medieval and Early Modern Europe: Patronage, Sources and Texts, 163-92. Cambridge.

Fenlon, Iain, and James Haar. 1980. A New Source for the Early Madrigal. Journal of the American Musicological Society, 33: 164-80.

Fenlon, Iain, and James Haar. 1978. Fonti e Cronologia dei Madrigali di Costanzo Festa. Revista Italiana di Musicologia, 13: 212-42.

Haar, James. 1978. Madrigals from the Last Florentine Republic. Essays Presented to Myron P. Gilmore, 383-403. Florence.

Haar, James. 1976. Some Remarks on the 'Missa La sol fa re mi'. Josquin des Prez: Proceedings of the International Josquin Festival-Conference ... 21-25 June 1971, 564-88. London, New York, and Toronto.

Haar, James. 1975. Madrigals from Three Generations: The MS Brussels, Bibl. du Conservatoire Royal, 27.731. Revista Italiana di Musicologia, 10: 242-64.

Haar, James. 1972. Altro non è il mio amor. Words and Music: The Scholar's View. A Medley of Problems and Solutions Compiled in Honor of A. Tillman Merritt , 93-114. Cambridge, Massachusetts.

Haar, James. 1966. A Gift of Madrigals to Cosimo I: The Ms. Florence, Bibl. Naz. Centrale, Magi. XIX, 130. Revista Italiana di Musicologia, 1: 167-89.

Haar, James (ed.) 1964-. Recent Researches in the Music of the Renaissance.  New Haven [Later: Madison; Later: Middleton, Wisconsin]: A-R Editions, Inc.

Haar, James (ed.) 1964. Chanson and Madrigal, 1480-1530... a Conference at Isham Memorial Library, September 13-14 1961.  Cambridge, Mass.

Haar, James. 1949-79. Humanismus. Die Musik in Geschichte und Gegenwart, 2nd Edition (Sachteil), 4: col.440-454.