APA引文

Hardwick, M. (1972). Osprey guide to Gilbert and Sullivan. Osprey.

Chicago Edition Citation

Hardwick, Michael. Osprey Guide to Gilbert and Sullivan. London: Osprey, 1972.

MLA引文

Hardwick, Michael. Osprey Guide to Gilbert and Sullivan. Osprey, 1972.

警告：這些引文格式不一定是100％准確.