The art of making sense :
Ruby, Lionel.
The art of making sense : a guide to logical thinking / Lionel Ruby. - 2nd ed. - London : Angus & Robertson, 1969. - ix, 245 p. ; illus. : 23 cm.
0207952140
Logic.
Logika.
BC108 / .R77 1968b
160
The art of making sense : a guide to logical thinking / Lionel Ruby. - 2nd ed. - London : Angus & Robertson, 1969. - ix, 245 p. ; illus. : 23 cm.
0207952140
Logic.
Logika.
BC108 / .R77 1968b
160