APA Edition Citation

Gregory, K. (2010). The earth's land surface: Landforms and processes in geomorphology. Sage.

Chicago Edition Citation

Gregory, Ken. The Earth's Land Surface: Landforms and Processes in Geomorphology. Thousand Oaks, CA: Sage, 2010.

MLA Edition Citation

Gregory, Ken. The Earth's Land Surface: Landforms and Processes in Geomorphology. Sage, 2010.

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