A Handbook of spiritual Ecumenism.

MLA

Kasper, Walter. A Handbook of Spiritual Ecumenism. New York: New City Press, 2007.

APA

Kasper, W. (2007). A Handbook of spiritual Ecumenism. New York: New City Press.

Chicago

Kasper, Walter A Handbook of Spiritual Ecumenism. New York: New City Press, 2007.