APA引文

Ehlers, E., & Krafft, T. M., C. (2001). Understanding the earth system. Springer.

Chicago Edition Citation

Ehlers, Eckart, and Thomas Moss Krafft, C. Understanding the Earth System. Berlin: Springer, 2001.

MLA引文

Ehlers, Eckart, and Thomas Moss Krafft, C. Understanding the Earth System. Springer, 2001.