| Type |  Book |
| ชื่อเรื่อง | Administration of ECO-education : handbook for administrators of environmental-conservation-outdoor education programs / George W. Donaldson, Malcolm D. Swan |
| ผู้แต่ง | Donaldson, George warren |
| พิมพลักษณ์ | Washington : Council on Outdoor Education (ARAPC), an Association of the American Alliance for Health, Physical Education, Recreation and Dance, 1979 |
| รูปเล่ม | 131 p. ; 26 cm |
| หัวเรื่อง | Conservation of natural resources --Study and teaching [] |
| | Ecology --Study and teaching [] |
| | Outdoor education |