TY  - BOOK
AU  - Liftoff
TI  - Chemistry a problem based learning approach user's manual
SN  - 0-471-01805-8
U1  - 260 SOF'T 
PY  - 1996///
CY  - NEWYORK
PB  - JOHN WILEY
KW  - PROBLEM BASED LEARNING APPROACH-CHEMISTRY
ER  -