The work of the United States Public health service.
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Publication
1940 - U.S. Govt. print. off., Washington, No place, unknown, or undetermined
Language
English
Word Count
20,500 words, Guess
Page Count
82 pages
Identifiers
- Library of Congress Control Number40026727
- OCLC Control Number6320115
- Open LibraryOL6407336M
Classifications
- DDC614.06173
- LCCRA11 .B177 no. 152
Subjects
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