Historical dictionary of choral music
MLA
Unger, Melvin P. Historical Dictionary of Choral Music. Historical Dictionaries of Literature and the Arts. Lanham, Md.: Scarecrow Press, 2010
APA, 7th edition
Unger, M. P. (2010). Historical dictionary of choral music. Historical dictionaries of literature and the arts. Lanham, Md.: Scarecrow Press
Chicago, 17th edition
Unger, Melvin P. Historical dictionary of choral music. Historical dictionaries of literature and the arts. Lanham, Md.: Scarecrow Press, 2010