By Vincent H. Duckles and Ira Reed.
New York: Schirmer Books, 1997.
An important reference work, this bibliography has citations for thousands of other music reference books, including other bibliographies, library catalogs, encyclopedias and online resources.
By Richard Chaffey von Ende.
Metuchen, NJ: Scarecrow, 1980.
Contains nearly 5500 references to books and articles dealing with church music, spread out over 284 categories, such as Composers, Hymnology and Rhythm & Meter.