APA引文

Pipkin, B. (2011). Geology and the environment (7th ed.). Cenage Learning.

Chicago Edition Citation

Pipkin, Bernard. Geology and the Environment. 7th ed. UK: Cenage Learning, 2011.

MLA引文

Pipkin, Bernard. Geology and the Environment. 7th ed. Cenage Learning, 2011.

警告：這些引文格式不一定是100％准確.