Não informado. (1894). Contributions to philosophy, psychology and education. Columbia University.
Style de citation Chicago (17e éd.)Não informado. Contributions to Philosophy, Psychology and Education. New York: Columbia University, 1894.
Style de citation MLA (8e éd.)Não informado. Contributions to Philosophy, Psychology and Education. Columbia University, 1894.
Attention : ces citations peuvent ne pas être correctes à 100%.