APA引文

Coenraads, R. R. (2007). Geologica: : Earth's dynamic forces. Millennium House.

Chicago Edition Citation

Coenraads, Robert R. Geologica: : Earth's Dynamic Forces. Millennium House, 2007.

MLA引文

Coenraads, Robert R. Geologica: : Earth's Dynamic Forces. Millennium House, 2007.

警告：這些引文格式不一定是100％准確.