Perkinson, H. (1968). The imperfect Panacea: American faith in education 1865-1965. Random House.
Cita Chicago (17th ed.)Perkinson, Henry. The Imperfect Panacea: American Faith in Education 1865-1965. New York: Random House, 1968.
Cita MLA (9th ed.)Perkinson, Henry. The Imperfect Panacea: American Faith in Education 1865-1965. Random House, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.