1 | Hubbard, B., & Glasser, N. F. (2005). Field techniques in glaciology and glacial geomorphology. John Wiley & Sons. |
2 | French, H. M. (2017). The periglacial environment. John Wiley & Sons. |
3 | Knight, J., & Harrison, S. (Eds.). (2009). Periglacial and paraglacial processes and environments. Geological Society of London. |