MLA

Grove, George, and Stanley Sadie. The New Grove Dictionary of Music and Musicians. London: MacMillan, 1998.

APA

Grove, G., & Sadie, S. (1998). The new Grove dictionary of music and musicians. London: MacMillan.

Chicago

Grove, George, The New Grove Dictionary of Music and Musicians. Edited by Stanley Sadie. London: MacMillan, 1998.