The methods of contemporary thought - Bocheński, Józef Maria, <op, 1902-1995>. (OLS)http://semarc/name/2687 (D. Reidel Publ. Co.,, 1965)
Keywords: Logica. (OLS)http://semarc/subject/2494; Filosofia - Metodologia. (OLS)http://semarc/subject/14315