TY  - BOOK
AU  - Hearnshaw F. J. C. Ed.
TI  - Medieval contributions to modern civilization :  A   
T2  - Social and Political Ideas
U1  - Jv5.H<---D, E0 
PY  - 1921///
CY  - London
PB  - Harrap U. K.        
KW  - Agriculture
ER  -