Marshall, M. (1953). The singer's manual of English diction. G. Schirmer.
Cita Chicago (17th ed.)Marshall, Madeleine. The Singer's Manual of English Diction. New York: G. Schirmer, 1953.
Cita MLA (9th ed.)Marshall, Madeleine. The Singer's Manual of English Diction. G. Schirmer, 1953.
Atenció: Aquestes cites poden no estar 100% correctes.