@article{1183389114, author = {Langford, C. H.}, title = {Review: Abraham Kaplan, Irving M. Copilowish, Must There be Propositions?}, journal = {J. Symbolic Logic}, volume = {5}, number = {1}, year = {1940}, language = {en}, url = {http://dml.mathdoc.fr/item/1183389114} }
Langford, C. H. Review: Abraham Kaplan, Irving M. Copilowish, Must There be Propositions?. J. Symbolic Logic, Tome 5 (1940) no. 1, . http://gdmltest.u-ga.fr/item/1183389114/