| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| Instructional aids,: How to make and use them | Paperback | 978-0-697-06040-2 | 1970 |
| Science activities for elementary children | " | 978-0-697-06192-8 | 1984 |
| Science activities for elementary children | 978-0-697-04689-5 | 1980 | |
| Science activities for elementary children | 978-0-697-04688-8 | 1976 | |
| Science activities for elementary children | Paperback | 978-0-697-04687-1 | 1972 |
L.N.???? · L Nelson · L. W. · Leslie Nelson · Leslie W. · Leslie W. Nelson · W. Nelson