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Publication
1945 - , No place, unknown, or undetermined
Language
English
Word Count
6,750 words, Guess
Page Count
27 pages
Identifiers
- OCLC Control Number54910022
- Open LibraryOL45518808M
Subjects
Series Statement
- Its Letter circular -- LC781 (supersedes LC692)
- Letter circular (United States. National Bureau of Standards) -- 781.
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