Gardner, Martin
Time travel and other mathematical bewilderments / Martin Gardner. - New York : W.H. Freeman, [19--?]
. - [3] f., 29 p. : il. ; 23 cm
0716719258
U10-1-142
Time travel and other mathematical bewilderments / Martin Gardner. - New York : W.H. Freeman, [19--?]
. - [3] f., 29 p. : il. ; 23 cm
0716719258
U10-1-142