TY  - BOOK
AU  - Diffie, Bailey W.
TI  - Prelude to empire: Portugal overseas before Henry the Navigator 
T2  - A Bison book original,
U1  - 946.901 DIF 
PY  - 1960///
CY  - Lincoln
PB  - University of Nebraska Press
KW  - Portugal
KW  - History
KW  - To 1385
KW  - Commerce
N1  - Includes bibliographical references
ER  -