APA引文

Smol, G. (1976). Telephone systems: Study supplement. Open Univ.Press.

Chicago Edition Citation

Smol, G. Telephone Systems: Study Supplement. Open Univ.Press, 1976.

MLA引文

Smol, G. Telephone Systems: Study Supplement. Open Univ.Press, 1976.

警告：这些引文格式不一定是100％准确.