Effective radio use ; a self-instructional course designed for personnel of the Forest Service, U. S. Department of Agriculture.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
[U.S. Govt. Print. Off],
[1969]
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| Subjects: |
| Physical Description: | iv, 191 pages : illustrations |
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