TY  - BOOK
TI  - A hand operated winnower
T2  - Tropical Products Institute; Rural Technology Guide; 11
U1  - TR631.361.3:621-514(047)   M1 
PY  - 1981///
CY  - London
PB  - Tropical Products Institute
KW  - Beaumont, J.H.
KW  - Fanning-mills
ER  -