Information series.
| Corporate Author: | |
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| Format: | Serial |
| Language: | English |
| Published: |
College Park, Md.
[publisher not identified] ;
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| Subjects: | |
| Online Availability: |
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| Published: | no. 1- Oct. 1930- |
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| Physical Description: | volumes : illustrations |
| ISSN: | 0097-4560 |