Schubert, F. P. (1999). Who is Sylvia: Song. Music Sales.
Chicagoスタイル(17版)引用形式Schubert, Franz Peter. Who Is Sylvia: Song. New York: Music Sales, 1999.
MLA(9版)引用形式Schubert, Franz Peter. Who Is Sylvia: Song. Music Sales, 1999.
警告: この引用は必ずしも正確ではありません.