| ISBN: | 013094629X |
|---|---|
| 题名: | Teaching and learning at a distance: foundations of distance education/ Michael Simonson...[et al.]. |
| 版本说明: | 2nd ed. |
| 索书号: | G434/T253E |
| 出版发行项: | Upper Saddle River,NJ.: Merrill Prentice Hall, 2003. |
| 载体形态: | 302p.: ill.; 24cm. |
| 书目附注: | includes index. |