Page:Compendium of US Copyright Office Practices, II (1984).pdf/238

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Unacceptable variants include:

. The notice on phonorecords of sound recordings should include the symbol ℗ (the letter P in a circle). A variant of the symbol ℗ is acceptable only where it resembles the ℗ closely enough to indicate clearly that the sound recording copyright symbol is meant.

Unacceptable variants include:

must include the year of first publication of the work. The notice on copies of a compilation or derivative work incorporating

[1984]