Classification of radio subjects : an extension of the Dewey decimal system / Issued October 16, 1930.
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Corporate Author: | |
Other Authors: | , |
Other title: | Radio subject classification. |
Format: | Government Document Book |
Language: | English |
Published: |
Washington :
U.S. Govt. Print. Off,
1930.
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Series: | Circular of the Bureau of Standards ;
no. 385. |
Subjects: |