The Art of the Song Recital by 
Guide to the Aria Repertoire by 
Art Song in the United States, 1759-2011 by 
The new Broadway song companion : an annotated guide to musical theatre literature by voice type and song style by Repertoire bibliographies are lists of musical works, organized by voice type, time period, or other meaningful scheme, with annotations and descriptions of each work. They can be an excellent tool for assisting a singer with choosing repertoire.
Each link below executes a library catalog search for bibliographies with a particular subject heading related to vocal music.