Original sentence: During Richardson's life, his printing press produced nearly five hundred different books.He wanted to keep the press in his family, but after the death of his four sons and a nephew, his printing press would be left in his will to his only surviving male heir, a second nephew
Edited sentence: <ref name=Keith Maslen, Samuel Richardson of London Printer> He wanted to keep the press in his family, but after the death of his four sons and a nephew, his printing press would be left in his will to his only surviving male heir, a second nephew.During Richardson's life, his printing press produced about 2349 items