TY  - GEN
AU  - Roth, Lawrence O.
AU  - Field, Harry L.
TI  - An introduction to agricultural engineering: a problem-solving approach
SN  - 0412069911
U1  - 631.3 
PY  - 1991///
CY  - New York
PB  - Chapman & Hall
KW  - Tools, machinery, apparatus, equipment
KW  - Agriculture
ER  -