TY  - BOOK
AU  - Sitkei, Gyorgy  .
TI  - Mechanics of agricultural materials / 
T2  - Developments in Agricultural Engineering, 
SN  - 0-444-99523-4
U1  - 631.3 
PY  - 1986///
CY  - Amsterdam : 
PB  - Elsevier , 
ER  -