@article{1183730837, author = {Fitch, Frederic B.}, title = {Review: Nathan P. Levin, Computational Logic}, journal = {J. Symbolic Logic}, volume = {14}, number = {4}, year = {1950}, language = {en}, url = {http://dml.mathdoc.fr/item/1183730837} }
Fitch, Frederic B. Review: Nathan P. Levin, Computational Logic. J. Symbolic Logic, Tome 14 (1950) no. 4, . http://gdmltest.u-ga.fr/item/1183730837/