APA引文

Dunbar, C. O., & Rodgers, J. Principles of stratigraphy.

Chicago Edition Citation

Dunbar, Carl O., and John Rodgers. Principles of Stratigraphy.

MLA引文

Dunbar, Carl O., and John Rodgers. Principles of Stratigraphy.

警告：这些引文格式不一定是100％准确.