DIRLINE : self-instructional guide.
| Corporate Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Bethesda, MD :
U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, Specialized Information Services, National Library of Medicine,
[1990]
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| Subjects: |
| Item Description: | Shipping list number: 90-194-P. |
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| Physical Description: | 40 pages : illustrations ; 28 cm. |