Gelbaum, B.R & Olmsted, J.M.H <br/><br/>
Theorems & counterexamples in mathematics 
B.R. Gelbaum & J.M.H. Olmsted 
 - New York  Springer  1990 
 - xxxiv  305 
 - Problem books in mathematics .
<br/><br/><label>Dewey Class. No.: </label>2.08+2.03+4.06+5.02+4.08+10.01+16.01  / GELB