TY  - BOOK
AU  - Washburn, A.L..
TI  - Gecryology:a survey of periglacial processes and environments / 
SN  - 0-7131-6119-1
U1  - H421:V 
CY  - London : 
PB  - Edward Arnold (Publishers) Ltd.
KW  - Geocryology
ER  -