TY  - BOOK
AU  - Dean Warren
TI  - Rio claro:  A brazilian plantation system, 1820-192   
SN  - 0804709025
U1  - X9(J):9.7918R.N20<--M20, L6 
PY  - 1976///
CY  - Stanford
PB  - Stan ford University Press       
KW  - Labour
ER  -