Jeffrey, Richard C.
Formal logic : its scope & limits / Richard C. Jeffrey - New York : McGraw-Hill ., 1967 - xii, 238p. : ill.; 22 cm.
Logic
160 / JEF
Formal logic : its scope & limits / Richard C. Jeffrey - New York : McGraw-Hill ., 1967 - xii, 238p. : ill.; 22 cm.
Logic
160 / JEF