APA引文

Maidl, B. (2008). Hardrock tunnel boring machines. Ernst and sohn.

Chicago Edition Citation

Maidl, Bernhard...[et.al]. Hardrock Tunnel Boring Machines. Berlin: Ernst and sohn, 2008.

MLA引文

Maidl, Bernhard...[et.al]. Hardrock Tunnel Boring Machines. Ernst and sohn, 2008.

警告：這些引文格式不一定是100％准確.