Baker's Biographical Dictionary of Popular Musicians since 1990
by
Broadway: Its History, People, and Places: An Encyclopedia
by 
The Concise Oxford Companion to the Theatre
by
The Great Jazz Pianists: Speaking of Their Lives and Music
by
The Grove Dictionary of American Music
by
International Dictionary of Black Composers
by
Major Film Directors of the American and British Cinema
by
The New Grove Dictionary of Music and Musicians (Print)
by 
The Oxford Companion to the American Musical
by
The Oxford Dictionary of Music
by
Vaudeville, Old & New : an Encyclopedia of Variety Performers in America
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