| Pimentel Discusses Chemical Bonding |
|
Modern Learning Aids Div Of Ward's Natural Science |
|
16mm |
|
sound |
| Discussion Among Teachers And The Chem Study Staff - Concluding Panel Session |
|
Modern Learning Aids Div Of Ward's Natural Science |
|
16mm |
|
sound |
| A Panel Feedback Session - Midway In Course |
1966 |
Chemistry Educational Materials |
|
16mm |
|
sound |