Flesch, Rudolf.
The art of clear thinking / Rudolf Flesch. - New York : Harper, 1951. - xii, 212 p. : ill., 21 cm.
Thought and thinking.
Logic.
153 / FLA
The art of clear thinking / Rudolf Flesch. - New York : Harper, 1951. - xii, 212 p. : ill., 21 cm.
Thought and thinking.
Logic.
153 / FLA