An International Civic Union’s bilingual flyer calling for the public’s support for the organization based in San Antonio, Texas in order to protest religious persecution in Mexico
"The World Environment: A Program For The People of Planet Earth," Eleventh Annual Grady Gammage Memorial Lecture, Arizona State University, Tempe, Arizona, February 16, 1972
Statement of Stewart L. Udall before the Transportation Subcommittee, House Appropriations Committee, (regarding the Supersonic Transport Plane(SST), Washington, D.C., March 2, 1971
Remarks to The Inter-American Specialized Conference to Deal With Problems Relating to the Conservation of Renewable Natural Resources in the Western Hemisphere, Mar Del Plata, Argentina, October 18, 1965