'The Copyright Law of 1870 required that all copyright applicants send 2 copies of their work to this institution'
the Library of Congress
____ OF ____: The Copyright Law of 1870 required that all copyright applicants send 2 copies of their work to this institution
The Copyright Law of 1870 required that all copyright applicants send 2 copies of their work to this institution
The Copyright Law of 1870 required that all copyright applicants send 2 copies of their work to this institution
____ OF ____
the Library of Congress
____ OF ____