TY  - GEN
AU  - Yatsuk, E. P.
ED  - Chernenkov, A. D.
TI  - Rotary Soil Working Machines: Construction, Calculation and Design 
U1  - 624.15 
PY  - 1981///
CY  - New Delhi
PB  -  Amerind,1981.
KW  - Soil mechanics
ER  -