APA引文

Beethoven, L. v. (1993). Symphony, no.5, C minor, op.67. s.n.].

芝加哥风格引文

Beethoven, Ludwig van. Symphony, No.5, C Minor, Op.67. [S.l: s.n.], 1993.

MLA引文

Beethoven, Ludwig van. Symphony, No.5, C Minor, Op.67. s.n.], 1993.