Complex sentence: Peter W. Williams reviewed the book in "The Journal of American History" and provided a less positive review, saying that the book was a "mildly interesting and useful footnote to the sixties" but that he wished the book had gone further than that.
Split into simpler sentences: Peter W. Williams reviewed the book in "The Journal of American History" and provided a less positive review. Williams concluded his review by stating that the book was a "mildly interesting and useful footnote to the sixties" but that he wished the book had gone further than that.