Não informado. (1968). Philosophy and History. Institute for Scientific Co-operation.
Style de citation Chicago (17e éd.)Não informado. Philosophy and History. Tubingen, Alemanha: Institute for Scientific Co-operation, 1968.
Style de citation MLA (8e éd.)Não informado. Philosophy and History. Institute for Scientific Co-operation, 1968.
Attention : ces citations peuvent ne pas être correctes à 100%.