TY  - BOOK
AU  - Badders, William
TI  - Houghton Mifflin science discoveryworks. teaching guide / 3
SN  - 9780618168682
U1  - 371.3028 BAD 
PY  - 2003///
CY  - Boston
PB  - Houghton Mifflin
KW  - Methods of instruction and study
N1  - Includes index
ER  -