TY  - GEN
AU  - Nelsen, Roger B.
ED  - Mathematical Association of America
TI  - Proofs without words
SN  - 9780883857006 v.1.
AV  - QA90.N385 1993 
PB  - The Mathematical Association of America
KW  - Mathematics - Charts, diagrams, etc
KW  - QA
N1  - v.1. - Exercises in visual thinking - v.2. More exercises in visual thinking; v.2. published 2000; Includes bibliographical references and index
ER  -