APA

Grimm J., J.Harold Grimm, .The Reformation Era. New York: .

Chicago

Grimm J.Harold, J.Harold Grimm, .The Reformation Era. New York: .

Harvard

Grimm J., J.Harold Grimm, .The Reformation Era. New York: .

MLA

Grimm J.Harold, J.Harold Grimm, .New York: . .