Welton, J. 1854-1942.
An intermediate logic / J. Welton ; revised by E.M. Whetnall. - London : University Tutorial Press, 1928. - xvi, 508 p. ; 19 cm.
Logic.
160
An intermediate logic / J. Welton ; revised by E.M. Whetnall. - London : University Tutorial Press, 1928. - xvi, 508 p. ; 19 cm.
Logic.
160