TY  - BOOK
AU  - Leong, Goh Cheng
TI  - Ceritificate regional geography North America
U1  - 910.0973 LEO 
PY  - 1972///.
CY  - Singapore : 
PB  - Oup, 
KW  - Geography-north America
KW  - Regional Geography-north America
ER  -