Cita APA (7th ed.)
Smuts, A. B., & Smuts, R. W. (2006). Science in the service of children, 1893-1935. Yale University Press.
Cita Chicago (17th ed.)
Smuts, Alice Boardman, i Robert W. Smuts. Science in the Service of Children, 1893-1935. New Haven: Yale University Press, 2006.
Cita MLA (9th ed.)
Smuts, Alice Boardman, i Robert W. Smuts. Science in the Service of Children, 1893-1935. Yale University Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.