APA引文

Estrada, R. (2000). Works for mixed choir. s.n.].

芝加哥风格引文

Estrada, Robin. Works for Mixed Choir. [S.l: s.n.], 2000.

MLA引文

Estrada, Robin. Works for Mixed Choir. s.n.], 2000.

警告：这些引文格式不一定是100％准确.