Complex sentence: Marion Sinclair died in 1988, so the song is still under copyright according to Australian copyright law, and the publishing rights are held by Larrikin Music and in the United States, the rights are administered by Music Sales Corp. in New York City.
Split into simpler sentences: Marion Sinclair died in 1988, so the song is still under copyright according to Australian copyright law, and the publishing rights are held by Larrikin Music. In the United States, the rights are administered by Music Sales Corp. in New York City.