Beethoven, L. v., Schubert, F., & Baker, J. (1977). Janet Baker sings Beethoven and Schubert. Philips.
Chicagoスタイル(17版)引用形式Beethoven, Ludwig van, Franz Schubert, , Janet Baker. Janet Baker Sings Beethoven and Schubert. [S.l.]: Philips, 1977.
MLA(8版)引用形式Beethoven, Ludwig van, et al. Janet Baker Sings Beethoven and Schubert. Philips, 1977.
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