TY  - BOOK
AU  - Ryabchikov A
TI  - Changing face of the earth :  The structure and dyn   
U1  - U47, L5 
PY  - 1975///
CY  - Moscow
PB  - Progress Publishers         
KW  - Human Geography
N1  - Bib p. 197-205; Appendix p. 187-96
ER  -