February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Spine title reads: Public Papers of the Presidents, Richard Nixon, 1971. Contains public messages and statements of the President of the United States released by the White House from January 2-December 30, 1971. Also includes appendices and an index. Item 574-A. Public Papers of the Presidents collection can be found here: https://bookstore.gpo.gov/catalog/public-papers-presidents