APA (7th ed.) Citation

Gregory, K. J. (2010). The earth's land surface: Landforms and processes in geomorphology (1. publ.). SAGE.

Chicago Style (17th ed.) Citation

Gregory, Kenneth John. The Earth's Land Surface: Landforms and Processes in Geomorphology. 1. publ. Los Angeles [u.a.]: SAGE, 2010.

MLA (9th ed.) Citation

Gregory, Kenneth John. The Earth's Land Surface: Landforms and Processes in Geomorphology. 1. publ. SAGE, 2010.