ISBN: | 013094629X |
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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. |