APA引文

Ewen, D. (1973). The new encyclopedia of the opera. Vision Press.

Chicago Style (17th ed.) Citation

Ewen, David. The New Encyclopedia of the Opera. London: Vision Press, 1973.

MLA引文

Ewen, David. The New Encyclopedia of the Opera. Vision Press, 1973.

警告：這些引文格式不一定是100％准確.