Holmberg, Mark L, Harmonic reading : an approach to chord singing / Mark L. Holmberg. - Lanham, Maryland : University Press of America, (c)1983. - xii, 127 pages : music ; 22 cm. LCCN: 83006817 /MN Subjects--Topical Terms: Sight-singing.Harmony. LC Class. No.: MT870 / .H376 1983