Cita APA

Concone, G. 1., & Nicholl, H. W. n. 1. (1939). Forty lessons: Op. 17 : for bass or baritone voice. New York: G. Schirmer.

Citación estilo Chicago

Concone, Guiseppe 1810-1861, y Horace Wadham n. 1848 Nicholl. Forty Lessons: Op. 17 : For Bass or Baritone Voice. New York: G. Schirmer, 1939.

Cita MLA

Concone, Guiseppe 1810-1861, y Horace Wadham n. 1848 Nicholl. Forty Lessons: Op. 17 : For Bass or Baritone Voice. New York: G. Schirmer, 1939.