The Future of the Social Studies (1939) • The Voice of Asia (1951) • Rascals in Paradise (1957) • Report of the Country Chairman (1961) • Iberia (1968) • Presidential Lottery (1969) • The Quality of Life (1970) • Kent State: What Happened and Why (1971) • Sports in America (1976) • About Centennial: Some Notes on the Novel (1978) • United States of America (1982) • Collectors, Forgers - And A Writer: A Memoir (1983) • All We Did Was Fly to the Moon (1985) • Six Days in Havana (1989) • Pilgrimage: A Memoir of Poland and Rome (1990) • The Eagle and The Raven (1990) • My Lost Mexico (1992) • The World is My Home (1992) • Writer's Handbook (1992) • Creatures of the Kingdom (1993) • Literary Reflections (1993) • William Penn (1994) • Ventures in Editing (1995) • Miracle in Seville (1995) • This Noble Land (1996) • A Century of Sonnets (1997)
