Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.