United States government publication in the public domain.
Catalog of Copyright Records 3rd series, vol.4, part 14b Nos.1 and 2 (Jan.-Dec., 1950). This is for music renewal registrations only. New registrations are found in Part 5a.
Notes
Scanned by Google from a copy held by the University of Michigan and made available in 600dpi black and white tif files by Hathi Trust.
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