Let's sing international spiritual songbook.

MLA

Balzer, Matthias, and Bernhard W Zaunseder. Let's Sing: International Spiritual Songbook. Freiburg: Herder, 2004.

APA

Balzer, M., & Zaunseder, B. W. (2004). Let's sing: international spiritual songbook. Freiburg: Herder.

Chicago

Balzer, Matthias ed., and Bernhard W Zaunseder ed. Let's Sing: International Spiritual Songbook. Freiburg: Herder, 2004.