Priestley, M. (2012). Music therapy in action (2nd ed.). Barcelona Pub..
Lua i Stíl Chicago (17ú heag.)Priestley, Mary. Music Therapy in Action. 2nd ed. Gilsum, NH: Barcelona Pub., 2012.
Lua MLA (9ú heag.)Priestley, Mary. Music Therapy in Action. 2nd ed. Barcelona Pub., 2012.
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