| 000 | 00458nam a2200133 a 4500 | ||
|---|---|---|---|
| 005 | 20160814165618.0 | ||
| 008 | 090106s19uu xx 00 eng d | ||
| 245 | 1 | 0 | _aUnderstanding: viruses. |
| 260 | 0 |
_aSilver Spring, Md : _bDiscovery Communications, Inc, _c2004. |
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| 500 | _aProgram time: 52 minutes. | ||
| 520 | _aDVD Features: video index, curriculum units, standards link, teaching resources. | ||
| 650 | _aViruses | ||
| 856 | 4 | _uhttp://discoveryschool.com | |
| 999 |
_c10582 _d10582 |
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