Marshall, M. (1953). The singer's manual of English diction. G. Schirmer.
Chicago Style aipamenaMarshall, Madeleine. The Singer's Manual of English Diction. New York: G. Schirmer, 1953.
MLA aipamenaMarshall, Madeleine. The Singer's Manual of English Diction. G. Schirmer, 1953.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.