MLA

Unger, Melvin P. The German Choral Church Compositions of Johann David Heinichen, 1683-1729. New York: Lang, 1990.

APA

Unger, M. P. (1990). The German Choral Church Compositions of Johann David Heinichen, 1683-1729. New York: Lang.

Chicago

Unger, Melvin P. The German Choral Church Compositions of Johann David Heinichen, 1683-1729. New York: Lang, 1990.