Geomorphological techniques: Goudie A, Anderson M, Burt T, Lewin J, Richards K, Whalley B, Worsley P.2005Hubbard B, Glasser N. 1990. Field Techniques in Glaciology and Glacial Geomorphology, J. Wiley & Sons, Chichester.
Field Techniques in Glaciology and Glacial Geomorphology: Hubbard B, Glasser N.2005Hubbard B, Glasser N. 1990. Field Techniques in Glaciology and Glacial Geomorphology, J. Wiley & Sons, Chichester.
Geomorphological mapping. Methods and applications: Smith MJ, Paron P, Griffiths JS.2011Smith MJ, Paron P, Griffiths JS. 2011. Geomorphological mapping. Methods and applications. Elsevier.