Walters, R. (2012). The Singer's Musical Theatre Anthology : Duets: Duets. Hal Leonard Corporation.
Lua i Stíl Chicago (17ú heag.)Walters, Richard. The Singer's Musical Theatre Anthology : Duets: Duets. Milwaukee, WI, United States: Hal Leonard Corporation, 2012.
Lua MLA (9ú heag.)Walters, Richard. The Singer's Musical Theatre Anthology : Duets: Duets. Hal Leonard Corporation, 2012.
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