Valle Grande-Bandelier National Park : hearing before the Subcommittee on Public Laws of the Committee on Interior and Insular Affairs, United States Senate, Eighty-eighth Congress, second session, on S. 1870, a bill to provide for the establishment of the Valle Grande-Bandelier National Park in the State of New Mexico, and for other purposes. May 29, 1964. (U.S. Govt. Print. Off,, 1964)