Dietz, Dan. The Complete Book of 1940s Broadway Musicals. Rowman & Littlefield, 2015.
Dietz, Dan. The Complete Book of 1970s Broadway Musicals. Rowman & Littlefield, 2015.
Everett, William A. Historical Dictionary of the Broadway Musical. 2nd edition. Rowman & Littlefield, 2016.
Ganzl, Kurt. The Encyclopedia of the Musical Theatre. 2nd edition. New York: Schirmer Books, 2001. 3 vols. ML 102 .M88 G3 2001 Geisel Reference
Green, Stanley. Broadway Musicals, Show by Show. Milwaukee, WI : Applause Theatre & Cinema Books, 2014. ML1711 .G735 2014 Geisel Reference
Hischak, Thomas S. The American Musical Film Song Encyclopedia. Westport, Ct: Greenwood Press, 1999. ML 102 .M68 H57 1999 Geisel Reference
Hischak, Thomas S. American Plays and Musicals on Screen: 650 Stage Productions and Their Film and Television Adaptations. Jefferson, N.C.: McFarland, 2005. PS 338 .M67 H57 2005 Geisel Reference
Hischak, Thomas S. The Oxford Companion to the American Musical: Theatre, Film, and Television. New York: Oxford, 2008
Robinson, Mark A. The World of Musicals: An Encyclopedia of Stage, Screen and Song. Santa Barbara: Greenwood, 2014.
Summers, Claude, ed.. The Queer Encyclopedia of Music, Dance, and Musical Theater. San Francisco: Cleis Press, 2004. ML 100 .Q44 2004 Geisel Reference
Musicals Dot Net. Detailed information on about 80 musicals, including synopsis, songlists (with some lyrics), and a link to a discussion forum. Also has recent news and links to other sites.
Gilbert and Sullivan Archive. Central place for great information about G&S productions, historic and current.
R&H: Rodgers and Hammerstein. The most complete web source for information relating to the most famous composer/lyricist team in Broadway Musicals history.
Sondheim.Com and The Stephen Sondheim Reference Guide are two of several websites that provide information about original productions, available recordings, revivals, interviews with collaborators, etc.
The Broadway Musical Cast Album Database. Search by show titles, song titles, singers. Each entry gives year of premiere, year of recording, singer(s), conductor, track labels. Fairly complete through 2007, but it has not been updated for shows premiered, or recordings released, since 2008.
Cast Albums.Org. This database extends and partly duplicates the one above, and focuses on news about new recordings.