Learned, W. S. (1932). Realism in American education. Harvard University Press.
Chicago Style aipamenaLearned, William S. Realism in American Education. Cambridge: Harvard University Press, 1932.
MLA aipamenaLearned, William S. Realism in American Education. Harvard University Press, 1932.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.