Gelbaum, Bernard R. Theorems and counterexamples in mathematics / Bernard R. Gelbaum, John M.H. Olmsted. - xxxiv, 305 pages : illustrations ; 25 cm. - Problem books in mathematics. . Includes bibliographical references (p. 233-247). ISBN: 0387973427 (alkaline paper) : $42.00 Subjects--Topical Terms: Mathematics. LC Class. No.: QA36 GEL