TY  - BOOK
AU  - Whittaker,C.R.
TI  - Frontiers of the Roman Empire: a social and economic study 
AV  - DG59.W624.F766 1994 
PY  - 1994///
CY  - Baltimore
PB  - Johns Hopkins University Press
KW  - Boundaries
N1  - 1 (pages 307-330) and index; 2
ER  -