Cita APA

Berens, H. 1., & Berens, H. 1. (1898). Twenty children-studies: Without octaves for the piano : op.79. New York: G. Schirmer.

Citación estilo Chicago

Berens, Hermann 1826-1880, y Hermann 1826-1880 Berens. Twenty Children-studies: Without Octaves for the Piano : Op.79. New York: G. Schirmer, 1898.

Cita MLA

Berens, Hermann 1826-1880, y Hermann 1826-1880 Berens. Twenty Children-studies: Without Octaves for the Piano : Op.79. New York: G. Schirmer, 1898.