| Item Description: | Two thin transparent strips with center lines inserted in pocket. |
|---|---|
| Physical Description: | xii, 136 p. : ill. |
| ISBN: | 0470202513 |
| Item Description: | Two thin transparent strips with center lines inserted in pocket. |
|---|---|
| Physical Description: | xii, 136 p. : ill. |
| ISBN: | 0470202513 |