TY  - GEN
AU  - 
AU  - KHACHATRYAN,Kh A.
TI  - OPERATION OF SOIL-WORKING IMPLEMENTS IN HILLY REGIONS
U1  - 631.31/KHA 
PY  - 1985///
CY  - NEW DELHI
PB  - Amerind Publishing Co.Pvt.Ltd.
ER  -