TY  - BOOK
ED  - International Baccalaureate Organization 
TI  - Mathematics HL 
AV  - QA 43  .M426Hl 2006
U1  - IB 371.3  
PY  - 2006///
CY  - Buenos Aires : 
PB  - IBO. 
KW  - International Baccalaureate
KW  - Teaching
KW  - Aids and devices
KW  - IB Course Guide
ER  -