| Type |  Book |
| ชื่อเรื่อง | Before first grade : the early training project for culturally disadvantaged children / Susan W. Gray...[et. al.] |
| พิมพลักษณ์ | New York : Teachers College Press, c1966 |
| รูปเล่ม | 120 p |
| หัวเรื่อง | Activity programs in education |
| | Education, Primary |
| | Education |
| | First grade (Education) |
| | Project method in teaching |