Cita APA (7a ed.)

Wummer, J. (1959). 24 studies, op.33. International Music Company.

Cita Chicago Style (17a ed.)

Wummer, John. 24 Studies, Op.33. New York: International Music Company, 1959.

Cita MLA (8a ed.)

Wummer, John. 24 Studies, Op.33. International Music Company, 1959.