APA引文

Longwell, C. R., & Flint, R. F. Introduction to physical geology (6th ed.).

Chicago Edition Citation

Longwell, Chester R., and Richard F. Flint. Introduction to Physical Geology. 6th ed.

MLA引文

Longwell, Chester R., and Richard F. Flint. Introduction to Physical Geology. 6th ed.

警告：這些引文格式不一定是100％准確.